Measurement of $\alpha_{s}$ with Radiative Hadronic Events (2009)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Hadronic final states with a hard isolated photon are studied using data taken at centre-of-mass energies around the mass of the Z0 boson with the OPAL detector at LEP. The strong coupling alpha S is...
Expected Performance of the ATLAS Experiment - Detector, Trigger and Physics (2008)
Abat, E., Abbott, B., Abdallah, J., Abdelalim, A. A., Abdesselam, A., ...
A detailed study is presented of the expected performance of the ATLAS detector. The reconstruction of tracks, leptons, photons, missing energy and jets is investigated, together with the performance...
Search for Charged Higgs Bosos in $e^{+}e^{-}$ Collisions at $\sqrt{s}$ = 189-209 GeV (2008)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
A search is made for charged Higgs bosons predicted by Two-Higgs-Doublet extensions of the Standard Model (2HDM) using electron-positron collision data collected by the OPAL experiment at...
Search for Charged Higgs Bosos in e+e- Collisions at sqrts(s) = 189-209 GeV (2008)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
A search is made for charged Higgs bosons predicted by Two-Higgs-Doublet extensions of the Standard Model (2HDM) using electron-positron collision data collected by the OPAL experiment at...
The ATLAS central level-1 trigger logic and TTC system (2008)
Ask, S, Berge, D, Borrego-Amaral, P, Caracinha, D, Ellis, Nick, Farthouat, P, ...
The ATLAS central level-1 trigger logic consists in the Central Trigger Processor and the interface to the detector-specific muon level-1 trigger electronics. It is responsible for forming a level-1...
The FP420 R&D Project: Higgs and New Physics with forward protons at the LHC (2008)
Albrow, M. G., Appleby, R. B., Arneodo, M., Atoian, G., Azhgirey, I. L., Barlow, R., ...
We present the FP420 R&D project, which has been studying the key aspects of the development and installation of a silicon tracker and fast-timing detectors in the LHC tunnel at 420 m from the...
THE ATLAS HIGH LEVEL TRIGGER GROUP ∗ (2008)
S. Armstrong, J. T. Baines, C. P. Bee, M. Biglietti, A. Bogaerts, V. Boisvert, ...
Given the extremely high bunch crossing rate foreseen at the Large Hadron Collider (LHC) and the general-purpose nature of the ATLAS particle physics experiment, after the hardware-based first level...
Integration of the Trigger and Data Acquisition Systems in ATLAS (2008)
Abolins, M, Adragna, P, Aleksandrov, E, Aleksandrov, I, Amorim, A, Anderson, K, ...
During 2006 and the first half of 2007, the installation, integration and commissioning of trigger and data acquisition (TDAQ) equipment in the ATLAS experimental area have progressed. There have...
-meson production at HERA (2007)
Wengler Talk Given, T. Wengler
this paper we study forward single ß
Measurement of the $e^+ e^- \to W^+ W^-$ cross section and W decay branching fractions at LEP (2007)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
From a total data sample of 701.1 pb^-1 recorded with e+e- centre-of-mass energies of sqrt = 161-209 GeV with the OPAL detector at LEP, 11693 W-pair candidate events are selected. These data are used...
Bose-Einstein study of position-momentum correlations of charged pions in hadronic Z0 decays (2007)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
A study of Bose-Einstein correlations in pairs of identically charged pions produced in e+e- annihilations at the Z0 peak has been performed for the first time assuming a non-static emitting source....
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
A search is performed for Higgs bosons decaying into invisible final states, produced in association with a Zo boson in e+e- collisions at energies between 183 and 209 GeV. The search is based on...
Search for Dirac Magnetic Monopoles in $e^{+}e^{-}$ Collisions with the OPAL Detector at LEP2 (2007)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
This letter describes a direct search for pair produced magnetic monopoles in e+e- collisions. The analysis is based on 62.7 pb^-1 of data collected with the OPAL detector at an average...
Inclusive Jet Production in Photon-Photon Collisions at $\sqrt{^{s}ee}$ from 189 to 209 GeV (2007)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Inclusive jet production (e+e- -> e+e- +jet+X) is studied in collisions of quasi-real photons radiated by the LEP beams at e+e- centre-of-mass energies sqrt see from 189 to 209 GeV. Jets are...
Commissioning of the ATLAS Level-1 Central Trigger (2007)
Pauly, T, Ask, S, Berge, D, Ellis, Nick, Farthouat, P, Gällnö, P, ...
The ATLAS Level-1 Central Trigger consists of the Central Trigger Processor (CTP) and the Muon-to-CTP-Interface (MUCTPI). The CTP receives trigger information from the Level-1 Calorimeter Trigger...
The ATLAS Level-1 Trigger: Status of the System and First Results from Cosmic-Ray Data (2007)
Berge, D, Aielli, G, Andrei, V, Achenbach, R, Adragna, P, Aloisio, A, ...
The ATLAS detector at CERN's Large Hadron Collider (LHC) will be exposed to proton-proton collisions from beams crossing at 40 MHz. At the design luminosity of 10^34 cm^-2 s^-1 there are on average...
The Octant Module of the ATLAS Level-1 Muon to Central Trigger Processor Interface (2007)
Haas, Stefan, Ask, S, Berge, D, Ellis, Nick, Farthouat, P, Krasznahorkay, A, ...
Inclusive Production of Charged Hadrons in Photon-Photon Collisions (2006)
Abbiendi, G, Åkesson, P F, De Roeck, A, Zivkovic, L, Zer-Zion, D, Yamashita, S, ...
The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass...
Inclusive Production of Charged Hadrons in Photon-Photon Collisions (2006)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K, ...
The inclusive production of charged hadrons in the collisions of quasi-real photons e+e- -> e+e- +X has been measured using the OPAL detector at LEP. The data were taken at e+e- centre-of-mass...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
This paper describes a topological search for an invisibly decaying Higgs boson,H, produced via the Bjorken process (e+e- -> HZ). The analysis is based on data recorded using the OPAL detector at LEP...
Casado, M P, Dos Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, ...
The ATLAS experiment at the Large Hadron Collider (LHC) has an interaction rate of up to $10^9$ Hz. The trigger must efficiently select interesting events while rejecting the large amount of...
Santamarina, C., Conde-Muino, P., Dos Anjos, A., Armstrong, S., Baines, J. T. M., Bee, C. P., ...
ATLAS is one of the four LHC experiments that will start data taking in 2007, designed to cover a wide range of physics topics. The ATLAS trigger system has to cope with a rate of 40 MHz and 23...
Determination of the strong coupling constant at LEP (2006)
Multi-hadronic events produced in e+e- collisions provide an excellent laboratory to study QCD, the theory of strong interactions, and in particular to determine the strong coupling parameter alpha_s...
Proton Dissociative $\rho$ and Elastic $\phi$ Electroproduction at HERA (2006)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
The electroproduction of rho mesons with proton diffractive dissociation for Q^2 7 GeV^2 and the elastic electroproduction of Phi mesons for Q^2 6 Gev^2 are studied in e^+ p collisions at HERA with...
A measurement and QCD analysis of the proton structure function F$_{2}$(x,Q$^{2}$) at HERA (2006)
Aid, S., Andreev, V., Andrieu, B., Appuhn, R.D., Arpagaus, M., Babaev, A., ...
A new measurement of the proton structure function F_2(x,Q^2) is reported for momentum transfers squared Q^2 between 1.5~GeV^2 and 5000~GeV^2 and for Bjorken x between 3\cdot 10^{-5} and 0.32 using...
A measurement and QCD analysis of the proton structure function F$_{2}$(x,Q$^{2}$) at HERA (2006)
Aid, S., Andreev, V., Andrieu, B., Appuhn, R.D., Arpagaus, M., Babaev, A., ...
A new measurement of the proton structure function F_2(x,Q^2) is reported for momentum transfers squared Q^2 between 1.5~GeV^2 and 5000~GeV^2 and for Bjorken x between 3\cdot 10^{-5} and 0.32 using...
A measurement and QCD analysis of the proton structure function F$_{2}$(x,Q$^{2}$) at HERA (2006)
Aid, S., Andreev, V., Andrieu, B., Appuhn, R.D., Arpagaus, M., Babaev, A., ...
A new measurement of the proton structure function F_2(x,Q^2) is reported for momentum transfers squared Q^2 between 1.5~GeV^2 and 5000~GeV^2 and for Bjorken x between 3\cdot 10^{-5} and 0.32 using...
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Appuhn, R.D., ...
First results on inclusive D0 and D* production in deep inelastic $ep$ scattering are reported using data collected by the H1 experiment at HERA in 1994. Differential cross sections are presented for...
Bose-Einstein Correlations in Deep Inelastic ep Scattering at HERA (2006)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Testing on a Large Scale (2006)
Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Albuquerque-Portes, M, Alexandrov, L, Amorim, A, ...
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...
QCD coherence and correlations of particles with restricted momenta in hadronic Z decays (2006)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
QCD coherence effects are studied based on measurements of correlations of particles with either restricted transverse momenta, pT
QCD coherence and correlations of particles with restricted momenta in hadronic Z decays (2006)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
QCD coherence effects are studied based on measurements of correlations of particles with either restricted transverse momenta, pT
Burckhart-Chromek, Doris, Abolins, M, Adragna, P, Alexandrov, L, Amorim, A, Armstrong, S, ...
The ATLAS Data Acquisition (DAQ) and High Level Trigger (HLT) software system will be comprised initially of 2000 PC nodes which take part in the control, event readout, second level trigger and...
A configuration system for the ATLAS trigger (2006)
Dos Anjos, A, Ellis, Nick, Haller, J, Höcker, A, Kohno, T, Landon, M, ...
The ATLAS detector at CERN's Large Hadron Collider will be exposed to proton-proton collisions from beams crossing at 40 MHz that have to be reduced to the few 100 Hz allowed by the storage systems....
Precision Electroweak Measurements on the Z Resonance (2006)
Schael, S, Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
Precision Electroweak Measurements on the Z Resonance (2006)
Schael, S, Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, ...
We report on the final electroweak measurements performed with data taken at the Z resonance by the experiments operating at the electron-positron colliders SLC and LEP. The data consist of 17...
A configuration system for the ATLAS trigger (2006)
Anjos, A. Dos, Ellis, N., Haller, J., Hoecker, A., Kohno, T., Landon, M., ...
The ATLAS detector at CERN's Large Hadron Collider will be exposed to proton-proton collisions from beams crossing at 40 MHz that have to be reduced to the few 100 Hz allowed by the storage systems....
Search for Neutral MSSM Higgs Bosons at LEP (2006)
Schael, S, Zivkovic, L, Achard, P, Adriani, O, Aguilar-Benítez, M, Alcaraz, J, ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...
Search for Neutral MSSM Higgs Bosons at LEP (2006)
Schael, S, Achard, P, Adriani, O, Aguilar-Benítez, M, Alcaraz, J, Alemanni, G, ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Data from e+e- annihilation into hadrons at centre-of-mass energies between 91 GeV and 209 GeV collected with the OPAL detector at LEP, are used to study the four-jet rate as a function of the Durham...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Data from e+e- annihilation into hadrons at centre-of-mass energies between 91 GeV and 209 GeV collected with the OPAL detector at LEP, are used to study the four-jet rate as a function of the Durham...
Search for neutral MSSM Higgs bosons at LEP (2006)
Schael, S., Barate, R., Bruneliere, R., De Bonis, I., Decamp, D., Goy, C., ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric standard model (MSSM). The data of the four...
Search for neutral MSSM Higgs bosons (2006)
Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...
Search for neutral MSSM Higgs bosons (2006)
Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...
Santamarina, C., Conde-Muino, P., Dos Anjos, A., Armstrong, S., Baines, J. T. M., Bee, C. P., ...
ATLAS is one of the four LHC experiments that will start data taking in 2007, designed to cover a wide range of physics topics. The ATLAS trigger system has to cope with a rate of 40 MHz and 23...
Search for neutral MSSM Higgs bosons at LEP (2006)
Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
Search for neutral MSSM Higgs bosons at LEP (2006)
Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...
Deployment of the ATLAS High-Level Trigger (2006)
Dos Anjos, A., Armstrong, S., P. Beck, H., Bee, C.P., Biglietti, M., ...
The ATLAS combined test beam in the second half of 2004 saw the first deployment of the ATLAS High-Level Trigger (HLT). The next steps are deployment on the pre-series farms in the experimental area...
Search for neutral MSSM Higgs bosons at LEP (2006)
Achard, P., Adriani, O., Aguilar-Benítez, M., Alcaraz, J., Alemanni, G., Allaby, J., ...
The four LEP collaborations, ALEPH, DELPHI, L3 and OPAL, have searched for the neutral Higgs bosons which are predicted by the Minimal Supersymmetric Standard Model (MSSM). The data of the four...
The first-level trigger of ATLAS (2005)
Haller, J, Achenbach, R, Aielli, G, Aloisio, A, Alviggi, M G, Aprodu, V, ...
Due to the huge interaction rates and the tough experimental environment of pp collisions at a centre-of-mass energy sqrt(s)=14 TeV and luminosities of up to 10^34cm^-2s^-1, one of the experimental...
High momentum particle and jet production in photon-photon collisions (2005)
Jet and particle production have been studied in collisions of quasi-real photons collected during the LEP2 program. OPAL and DELPHI report good agreement of NLO perturbative QCD with the measured...
ATLAS Level-1 Trigger Timing-In Strategies (2005)
Pauly, Thilo, Borrego-Amaral, P, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, ...
The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a bunch-crossing rate of 40 MHz. In order to reduce the data rate, a three-level trigger system selects potentially...
ATLAS Level-1 Trigger Timing-In Strategies (2005)
Pauly, Thilo, Borrego-Amaral, P, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, ...
The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a bunch-crossing rate of 40 MHz. In order to reduce the data rate, a three-level trigger system selects potentially...
Configuration of the ATLAS Trigger (2005)
Spiwoks, Ralf, Dos Anjos, A, Ellis, Nick, Haller, J, Iqbal, N, Landon, M, ...
The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a rate of 40 MHz. In order to reduce the data rate, only potentially interesting events are selected by a three-level...
The ATLAS Level-1 Central Trigger Processor (CTP) (2005)
Spiwoks, Ralf, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, Haller, J, ...
The ATLAS Level-1 Central Trigger Processor (CTP) combines information from calorimeter and muon trigger processors and makes the final Level-1 Accept (L1A) decision on the basis of lists of...
Configuration of the ATLAS Trigger (2005)
Spiwoks, Ralf, Dos Anjos, A, Ellis, Nick, Haller, J, Iqbal, N, Landon, M, ...
The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a rate of 40 MHz. In order to reduce the data rate, only potentially interesting events are selected by a three-level...
The ATLAS Level-1 Central Trigger Processor (CTP) (2005)
Spiwoks, Ralf, Ask, S, Ellis, Nick, Farthouat, P, Gällnö, P, Haller, J, ...
The ATLAS Level-1 Central Trigger Processor (CTP) combines information from calorimeter and muon trigger processors and makes the final Level-1 Accept (L1A) decision on the basis of lists of...
Colour reconnection in $e^{+}e^{-}\to W^{+}W^{-}$ at $\sqrt{s}$ = 189 - 209 GeV$ (2005)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
The effects of the final state interaction phenomenon known as colour reconnection are investigated at centre-of-mass energies in the range $\sqrt{s}~ 189-209 GeV using the OPAL detector at LEP....
Measurement of the mass and width of the W boson (2005)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
The mass and width of the W boson are measured using e+e- -> W+W- events from the data sample collected by the OPAL experiment at LEP at centre-of-mass energies between 170 GeV and 209 GeV. The mass...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Searches were performed for topologies predicted by gauge-mediated Supersymmetry breaking models (GMSB). All possible lifetimes of the next-to-lightest SUSY particle (NLSP), either the lightest...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Searches were performed for topologies predicted by gauge-mediated Supersymmetry breaking models (GMSB). All possible lifetimes of the next-to-lightest SUSY particle (NLSP), either the lightest...
Determination of $\alpha_{s}$ using Jet Rates at LEP with the OPAL detector (2005)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Hadronic events produced in e+e- collisions by the LEP collider and recorded by the OPAL detector were used to form distributions based on the number of reconstructed jets. The data were collected...
Determination of $\alpha_{s}$ using Jet Rates at LEP with the OPAL detector (2005)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Hadronic events produced in e+e- collisions by the LEP collider and recorded by the OPAL detector were used to form distributions based on the number of reconstructed jets. The data were collected...
Configuration of the ATLAS trigger (2005)
Haller, J, Dos Anjos, A, Ellis, Nick, Landon, M, Spiwoks, R, Wengler, T, ...
The ATLAS detector at CERN's LHC will be exposed to proton-proton collisions at a rate of 40 MHz. In order to reduce the data rate to about 200 Hz, only potentially interesting events are selected by...
Santamarina-Rios, C, Conde-Muíño, P, Dos Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, ...
ATLAS is one of the four LHC experiments that will start data taking in 2007, designed to cover a wide range of physics topics. The ATLAS trigger system has to cope with a rate of 40 MHz and 23...
Gesualdi-Mello, A, Anjos, A, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, ...
The ATLAS experiment at the Large Hadron Collider (LHC) will face the challenge of efficiently selecting interesting candidate events in pp collisions at 14 TeV center-of-mass energy, whilst...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
For the first time at LEP the production of prompt photons is studied in the collisions of quasi-real photons using the OPAL data taken at e+e- centre-of-mass energies between 183 GeV and 209 GeV....
Measurement of the running of the QED coupling in small-angle Bhabha scattering at LEP (2005)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Using the OPAL detector at LEP, the running of the effective QED coupling alpha(t) is measured for space-like momentum transfer through its effect on the angular spectrum of small-angle Bhabha...
Measurement of the running of the QED coupling in small-angle Bhabha scattering at LEP (2005)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Anagnostou, G, Anderson, K J, ...
Using the OPAL detector at LEP, the running of the effective QED coupling alpha(t) is measured for space-like momentum transfer through its effect on the angular spectrum of small-angle Bhabha...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of Z-boson pair production in e+e- annihilation at center-of-mass energies between 190 GeV and 209 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nn), quark and...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of Z-boson pair production in e+e- annihilation at center-of-mass energies between 190 GeV and 209 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nn), quark and...
Albrow, MG, Anthonis, T, Arneodo, M, Barlow, R, Beaumont, W, Brandt, A, ...
Physics at the CLIC Multi-TeV Linear Collider (2004)
Aranda, A., Ateser, E., Balazs, C., Bardin, D., Barklow, T., ...
This report summarizes a study of the physics potential of the CLIC e+e- linear collider operating at centre-of-mass energies from 1 TeV to 5 TeV with luminosity of the order of 10^35 cm^-2 s^-1....
The Photon Collider at Tesla (2004)
Badelek, B, Blochinger, C, Blumlein, J, Boos, E, Brinkmann, R, Burkhardt, H, ...
High energy photon colliders $(\gamma\gamma,\gamma e)$ are based on $e^- e^-$ linear colliders where high energy photons are produced using Comptonscattering of laser light on high energy electrons...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
We have studied hadronic events from e+e- annihilation data at centre-of-mass energies from 91 to 209 GeV. We present distributions of event shape observables and their moments at each energy and...
The ATLAS Local Trigger Processor (LTP) 016 (2004)
Borrego-Amaral, P, Ellis, Nick, Farthouat, Philippe, Gällnö, P, Maeno, T, Pessoa-Lima, H, ...
The ATLAS Local Trigger Processor (LTP) 016 (2004)
Borrego-Amaral, P, Ellis, Nick, Farthouat, Philippe, Gällnö, P, Maeno, T, Pessoa-Lima, H, ...
The ATLAS Level-1 Central Trigger Processor Core Module (CTP_CORE) (2004)
Spiwoks, R, Borrego-Amaral, P, Ellis, Nick, Farthouat, Philippe, Gällnö, P, Haller, J, ...
Measurement of $R_b$ in $e^+ e^-$ Collisions at 182 - 209 GeV (2004)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Measurements of Rb, the ratio of the bbbar cross-section to the qqbar cross- section in e+e- collisions, are presented. The data were collected by the OPAL experiment at LEP at centre-of-mass...
Search for Radions at LEP2 (2004)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A new scalar resonance, called the radion, with couplings to fermions and bosons similar to those of the Higgs boson, is predicted in the framework of Randall-Sundrum models, proposed solutions to...
The ATLAS Local Trigger Processor (LTP) 018 (2004)
Borrego-Amaral, P, Ellis, Nick, Farthouat, Philippe, Gällnö, P, Pessoa-Lima, H, Maeno, T, ...
The Local Trigger Processor (LTP) receives timing and trigger signals from the Central Trigger Processor (CTP) and injects them into the Timing, Trigger and Control (TTC) system of a sub-detector...
The ATLAS Level-1 Central Trigger System 012 (2004)
Borrego-Amaral, P, Ellis, Nick, Farthouat, Philippe, Gällnö, P, Haller, J, Maeno, T, ...
The central part of the ATLAS Level-1 trigger system consists of the Central Trigger Processor (CTP), the Local Trigger Processors (LTPs), the Timing, Trigger and Control (TTC) system, and the...
Determination of the LEP Beam Energy using Radiative Fermion-pair Events, 2004 (2004)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
We present a determination of the LEP beam energy using "radiative return" fermion-pair events recorded at centre-of-mass energies from 183 GeV to 209 GeV. We find no evidence of a disagreement...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Upper limits on the cross-section of the pair-production process e+e- -> h0A0 assuming 100% decays into hadrons, are derived from a new search for the h0A0 -> hadrons topology, independent of the...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Events with a final state consisting of two or more photons and large missing transverse energy have been observed in e+e- collisions at centre-of-mass energies in the range 192 - 209 GeV using the...
A Step Towards A Computing Grid For The LHC Experiments: ATLAS Data Challenge 1 (2004)
Sturrock, R, Bischof, R, Epp, B, Ghete, V M, Kuhn, D, Mello, A G, ...
The ATLAS Collaboration at CERN is preparing for the data taking and analysis at the LHC that will start in 2007. Therefore, a series of Data Challenges was started in 2002 whose goals are the...
Search for neutral Higgs bosons in CP-conserving and CP-violating MSSM scenarios (2004)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
This report summarizes the final results from the OPAL collaboration on searches for neutral Higgs bosons predicted by the Minimal Supersymmetric Standard Model (MSSM). CP-conserving and for the...
A step towards a computing grid for the LHC experiments: ATLAS Data Challenge 1 (2004)
Sturrock, R., Bischof, R., Epp, B., Ghete, V.M., Kuhn, D., Mello, A.G., ...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Flavour inclusive, udsc and b fragmentation functions in unbiased jets, and flavour inclusive, udsc, b and gluon fragmentation functions in biased jets are measured in e+e- annihilations from data...
Measurement of the Strange Spectral Function in Hadronic $\tau$ Decays (2004)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Tau Lepton decays with open strangeness in the final state are measured with the OPAL detector at LEP to determine the strange hadronic spectral function of the tau lepton. The decays tau- ->...
Study of Bose-Einstein Correlations in $e^{+}e^{-}\to W^{+}W^{-}$ events at LEP (2004)
Abbiendi, G, Ainsley, C, Åkesson, T, Alexander, G, Allison, J, Amaral, P, ...
Bose-Einstein correlation between like-sign charged-particle pairs in e+e- -> W+W- events recorded with the OPAL detector at LEP at centre-of-mass energies between 183 GeV and 209 GeV are studied....
Di-Jet Production in Photon-Photon Collisions at $\sqrt{s_ee}$ = 189 to 209 GeV (2004)
Di-jet production is studied in collisions of quasi-real photons at e+e- centre-of-mass energies from 189 to 209 GeV at LEP. The data were collected with the OPAL detector. The structure of jets is...
Jet production in two-photon collisions at LEP (2004)
Jet and di-jet production are studied in collisions of quasi-real photons collected during the LEP2 program at e+e- center-of-mass energies from 189 to 209 GeV. OPAL reports good agreement of NLO...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Anomalous quartic couplings between the electroweak gauge bosons may contribute to the vv gamma gamma and qq gamma gamma final states produced in e+e- collisions. This analysis uses the LEP2 OPAL...
Search for Chargino and Neutralino Production at $\sqrt{s}$ = 192-209 GeV at LEP (2004)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Approximately 438 pb-1 of e+e- data from the OPAL detector, taken with the LEP collider running at centre-of-mass energies of 192-209 Gev, are analyzed to search for evidence of chargino pair...
The Photon Collider at Tesla (2004)
Badelek, B, Blochinger, C, Blumlein, J, Boos, E, Brinkmann, R, Burkhardt, H, ...
High energy photon colliders $(\gamma\gamma,\gamma e)$ are based on $e^- e^-$ linear colliders where high energy photons are produced using Comptonscattering of laser light on high energy electrons...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the...
The second level trigger of the ATLAS experiment at CERN's LHC (2004)
Dos Anjos, A., Abolins, M., Armstrong, S., T. Baines, J., Barisonzi, M., P. Beck, H., ...
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to /spl sim/100 kHz, /spl sim/2 kHz and /spl sim/200 Hz. The high...
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
The ATLAS High Level Trigger's (HLT) primary function of event selection will be accomplished with a Level-2 trigger farm and an event filter (EF) farm, both running software components developed in...
Algorithms for the ATLAS high-level trigger (2004)
Armstrong, S., T. Baines, J., Bee, C.P., Biglietti, M., Bogaerts, A., Boisvert, V., ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the...
W Boson Polarisation at LEP2 (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Elements of the spin density matrix for W bosons in e+e- -> W+W- -> qqln events are measured from data recorded by the OPAL detector at LEP. This information is used calculate polarised differential...
Measurement of the partial widths of the Z into up- and down-type quarks (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Using the entire OPAL LEP1 on-peak Z hadronic decay sample, Z -> qbarq gamma decays were selected by tagging hadronic final states with isolated photon candidates in the electromagnetic calorimeter....
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A search for the Higgsstrahlung process e+e- -> hZ is described, where the neutral Higgs boson h is assumed to decay into hadronic final states. In order to be sensitive to a broad range of models,...
An Overview of the ATLAS High Level Trigger Dataflow and Supervision (2003)
Wheeler, S, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter (EF)....
The ATLAS Level-1 Central Trigger Processor (CTP) (2003)
Ellis, Nick, Wengler, T, Torga-Teixeira, R, Schörner-Sadenius, T, Spiwoks, R, Schuler, G A, ...
An Overview of Algorithms for the ATLAS High Level Trigger (2003)
Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, Boisvert, V, ...
Following rigorous software design and analysis methods, an object-based architecture has been developed to derive the second- and third-level trigger decisions for the future ATLAS detector at the...
Wiedenmann, W, Armstrong, S R, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The Atlas High Level Trigger's primary function of event selection will be accomplished with a Level-2 trigger farm and an Event Filter farm, both running software components developed in the Atlas...
Search for R-parity violating decays of sfermions at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A search for pair-produced scalar fermions under the assumption that R-parity is not conserved has been performed using data collected with the OPAL detector at LEP. The data samples analysed...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
We present the first experimental results based on the jet boost algorithm, a technique to select unbiased samples of gluon jets in e+e- annihilations, i.e. gluon jets free of biases introduced by...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of Z-boson pair production in e+e- annihilation at center-of-mass energies between 190 GeV and 209 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nn), quark and...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Cross-section and angular distributions for hadronic and lepton-pair final states in e+e- collisions at centre-of-mass energies between 189 GeV and 209 GeV, measured with the OPAL detector at LEP,...
A Study of $W^{+}W^{-}\gamma$ Events at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A study of W+W- events accomanied by hard photon radiation produced in e+e- collisions at LEP is presented. Events consistent with being two on-shell W bosons and an isolated photon are selected from...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
In total 1317 di-lepton events with significant missing transverse momentum were identified in a total data sample of 680 pb-1 collected at e+e- centre-of-mass energies ranging from 183 GeV to 209...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A search for single production of doubly-charged Higgs bosons has been performed using 600.7 pb^-1 of e+e- collision data with sqrt(s)=189--209GeV collected by the OPAL detector at LEP. No evidence...
A study of charm production in beauty decays with the OPAL detector at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Using an inclusive method, BR(b -> D\bar{D}X) has been measured in hadronic Z^0 decays with the OPAL detector at LEP. The impact parameter significance of tracks opposite tagged b-jets is used to...
Measurement of charged current triple gauge boson couplings using W pairs at LEP (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Triple gauge boson couplings are measured from W-pair and single photon events recorded by the OPAL detector at LEP at center-of-mass energies between 183 - 209 GeV with a total integrated luminosity...
Abbiendi, G, Carter, A, De Wolf, E, McPherson, R A, Neal, H, Thomson, M, ...
Hadronic Z0 decays with identified electrons or muons have been used to measure the forward-backward asymmetries of e^+e^- --> Z0 --> bbbar and e^+e^- --> Z0 --> ccbar events. The asymmetries at...
Architecture of the ATLAS High Level Trigger Event Selection Software (2003)
Grothe, M, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) consists of two selection steps: the second level trigger and the event filter. Both will be implemented in software, running on mostly commodity hardware. Both...
Architecture of the ATLAS High Level Trigger Event Selection Software (2003)
Grothe, M, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) consists of two selection steps: the second level trigger and the event filter. Both will be implemented in software, running on mostly commodity hardware. Both...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
Gluon jets with a mean energy of 22 GeV and purity of 95% are selected from hadronic Z0 decay events produced in e+e- annihilations. A subsample of these jets is identified which exhibits a large gap...
The Algorithm Steering and Trigger Decision mechanism of the ATLAS High Level Trigger (2003)
Comune, G, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
Given the extremely high output rate foreseen at LHC and the general-purpose nature of ATLAS experiment, an efficient and flexible way to select events in the High Level Trigger is needed. An...
The Algorithm Steering and Trigger Decision mechanism of the ATLAS High Level Trigger (2003)
Comune, G, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
Given the extremely high output rate foreseen at LHC and the general-purpose nature of ATLAS experiment, an efficient and flexible way to select events in the High Level Trigger is needed. An...
Supervision of the ATLAS High Level Trigger System (2003)
Wheeler, S, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. The HLT...
Supervision of the ATLAS High Level Trigger System (2003)
Wheeler, S, Armstrong, S, Baines, J T M, Bee, C P, Biglietti, M, Bogaerts, A, ...
The ATLAS High Level Trigger (HLT) system provides software-based event selection after the initial LVL1 hardware trigger. It is composed of two stages, the LVL2 trigger and the Event Filter. The HLT...
Abbiendi, G, Ainsley, C, Alexander, G, Åkesson, P F, Allison, J, Amaral, P, ...
For the first time at LEP the production of prompt photons is studied in the collisions of quasi-real photons using the OPAL data taken at e+e- centre-of-mass energies between 183 GeV and 209 GeV....
Abbiendi, G, Ainsley, C, Alexander, G, Åkesson, P F, Allison, J, Amaral, P, ...
For the first time at LEP the production of prompt photons is studied in the collisions of quasi-real photons using the OPAL data taken at e+e- centre-of-mass energies between 183 GeV and 209 GeV....
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
A search for pair-produced leptoquarks is performed using e+e- collision events collected by the OPAL detector at LEP at centre-of-mass energies between 189 and 209 GeV. The data sample corresponds...
Abbiendi, G, Ainsley, C, Alexander, G, Allison, J, Amaral, P, Anagnostou, G, ...
A search for stable and long-lived massive particles of electric charge |Q/e|=1 or fractional charges of 2/3, 4/3, and 5/3 is reported using data collected by the OPAL detector at LEP, at...
Test of non-commutative QED in the process $e^{+}e^{-} \to \gamma \gamma$ at LEP (2003)
Abbiendi, G, Ainsley, C, Alexander, G, Allison, J, Amaral, P, Anagnostou, G, ...
Non-communicative QED would lead to deviations from the Standard Model depending on a new energy scale $\Delta_{NC}$ and a unique direction in space defined by two angles $\eta$ and $\xi$. Here in...
Bose-Einstein Correlations of $\pi^{0}$ Pairs from Hadronic $Z^{0}$ Decays (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
We observed Bose-Einstein correlation in pi0 pairs produced in Z0 decays using the data sample collected by the OPAL detector at LEP 1 from 1991 to 1995. Using a static Gaussian picture for the pion...
A Measurement of Semileptonic B Decays to Narrow Orbitally-Excited Charm Mesons (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
The decay chain b -> Bbar -> D^{**0} l nu X, D^{**0} -> D^{*+} pi^-, D^{*+} -> D^0 pi^+, D^0 ->(Kpi or K3pi) is identified in a sample of 3.9 million hadronic Z decays collected with the OPAL...
Di-Jet Production in Photon-Photon colisions at $\sqrt{s_{ee}}$ from 189 to 209 GeV (2003)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
Di-jet producion is studied in collisions of quasi-real photons at e+e- centre- of-mass energies sqrt(s)ee from 189 to 209 GeV at LEP. The data were collected with the OPAL detector. Jets are...
Dijet production in photon-photon collisions at s(ee)**(1/2) from 189-GeV to 209-GeV (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Bose-Einstein correlations of pi0 pairs from hadronic Z0 decays (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
A Study of charm production in beauty decays with the OPAL detector at LEP (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of charged current triple gauge boson couplings using W pairs at LEP (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
A Study of W+ W- gamma events at LEP (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for R parity violating decays of scalar fermions at LEP (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the partial widths of the Z into up and down type quarks (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for chargino and neutralino production at s**(1/2) = 192-GeV to 209 GeV at LEP (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Test of noncommutative QED in the process e+ e- ---> gamma gamma at LEP (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
W boson polarization at LEP2 (2003)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
A Measurement of the $\tau^{-}\to \mu^{-}\overline{\nu}_{\mu}\nu_{\tau}$ Branching Ratio (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
The tau -> mu nu nu branching ratio has been measured using data collected from 1990 to 1995 by the OPAL detector at the LEP collider. The resulting value of B(tau -> mu nu nu) = 0.1734 +-...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
We have measured the mean charged particle multiplicities separately for bbbar, ccbar and light quark (uubar, ddbar, ssbar) initiated events produced in e+e- annihilations at LEP. The data were...
Multi-Photon Production in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 181 - 209 GeV (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
The process e+e- -> gamma gamma (gamma) is studied using data collected by the OPAL detector at LEP between the years 1997 and 2000. The data set corresponds to an integrated luminosity of 672.3pb-1...
Search for Nearly Mass-Degenerate Charginos and Neutralinos at LEP (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
A search was performed for charginos with masses close to the mass of the lightest neutralino in e+e- collisions at centre-of-mass energies of 189-209 GeV recorded by the OPAL detector at LEP. Events...
Search for the Standard Model Higgs Boson with the OPAL Detector at LEP (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
This paper summarises the search for the Standard Model Higgs boson in e+e- collisions at centre-of-mass energies up to 209 GeV performed by the OPAL Collaboration at LEP. The consistency of the data...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
The b quark forward-backward asymmetry has been measured using hadronic Z0 decays collected by the OPAL experiment at LEP. Z0 -> bbbar decays were selected using a combination of secondary vertex and...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, G, Allison, J, Amaral, P, ...
We have analysed the data collected by OPAL at centre-of-mass energies between 189 and 209 GeV searching for Higgs boson candidates from the process e/sup +/e/sup -/ to h/sup 0/Z/sup 0/ followed by...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
The exclusive production of proton-antiproton pairs in the collisions of two quasi-real photons had been studied using data taken at sqrt(s)_ee=183 GeV and 189 GeV with the OPAL detector at LEP....
Charged Particle Momentum Spectra in $e^+ e^-$ annihilation at $\sqrt{s}$ = 192-209 GeV (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
Charged particle momentum distributions are studied in the reaction e+e- -> hadrons, using data collected with the OPAL detector at centre-of-mass energies from 192 GeV to 209 GeV. The data...
Search for scalar top and scalar bottom quarks at LEP (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
Searches for a scalar top quark and a scalar bottom quark have been performed using a data sample of 438 pb-1 at centre-of-mass energies of sqrt(s) = 192 - 209 GeV collected with the OPAL detector at...
Measurement of Neutral-Current Four-Fermion Production at LEP2 (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
Four-fermion final states qqbar e+e- and qqbar mu+mu- from neutral-current interactions in e+e- collisions are studied in the OPAL detector at LEP at centre-of-mass energies from 183 GeV to 209 GeV....
Inclusive Analysis of the b Quark Fragmentation Function in Z Decays at LEP (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
A study of b quark hadronisation is presented using inclusively reconstructed B hadrons in about four million hadronic Z decays recorded in 1992-2000 with the OPAL detector at LEP. The data are...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
A search is performed for production of short-lived particles in e+e- -> XY, with X -> gamma gamma and Y -> ffbar, for scalar X and scalar or vector Y. Model-independent limits in the range of 25-60...
Decay-mode independent searches for new scalar bosons with the OPAL detector at LEP (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
This paper describes topological searches for neutral scalar bosons S0 produced in association with a Z0 boson via the Bjorken process e+e- -> S0Z0 at centre-of-mass energies of 91 GeV and 183-209...
How well does QCD work for photon-photon collisions? (2002)
The performance of QCD in describing hadronic photon-photon collisions is investigated in the light of recent measurements from LEP on di-jet production, light hadron transverse momentum spectra, and...
Measurement of the Charm structure Function $F_{2}^{\gamma},c$ of the Photon at LEP (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Amaral, P, ...
The production of charm quarks is studied in deep-inelastic electron-photon scattering using data recorded by the OPAL detector at LEP at normal e+e- centre-of-mass energies from 183 to 209 GeV. The...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
A novel method of determining the mass of the W boson in the W+W- -> lnu lnu channel is presented and applied to 667pb^-1 of data recorded at the center-of- mass energies in the range 183-207 GeV...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squared Q^2 between 150 and 30,000 GeV2 and with Bjorken x between...
Measurement of the Hadronic Photon Structure Function $F_{2}^{\gamma}$ at LEP2 (2002)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
The hadronic structure of the photon F2gamma is measured as a function of Bjorken x and of the photon virtuality Q2 using deep-inelastic scattering data taken by the OPAL detector at LEP at e+e-...
A Measurement of the tau- ---> mu- anti-nu(mu) nu(tau) branching ratios (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
A Measurement of semileptonic B decays to narrow orbitally excited charm mesons (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Charged particle momentum spectra in e+ e- annihilation at s**(1/2) = 192-GeV to 209-GeV (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the charm structure function F2(c)(gamma) of the photon at LEP (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Decay mode independent searches for new scalar bosons with the OPAL detector at LEP (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Inclusive analysis of the b quark fragmentation function in Z decays at LEP (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of neutral current four fermion production at LEP-2 (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Charged particle multiplicities in heavy and light quark initiated events above the Z0 peak (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the hadronic photon structure function F**gamma(2) at LEP-2 (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the mass of the W boson in e+ e- collisions using the fully leptonic channel (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for charged excited leptons in e+ e- collisions at s**(1/2) = 183-GeV to 209-GeV (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for a low mass CP odd Higgs boson in e+ e- collisions with the OPAL detector at LEP-2 (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Multiphoton production in e+ e- collisions at s**(1/2) = 181-GeV to 209-GeV (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for scalar top and scalar bottom quarks at LEP (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for nearly mass degenerate charginos and neutralinos at LEP (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for the standard model Higgs boson with the OPAL detector at LEP (2002)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for Leptoquarks in Electron-Photon Scattering at $\sqrt{s_{ee}}$ up to 209 GeV at LEP (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
Searches for first generation scalar and vector leptoquarks, and for squarks in R-parity violating SUSY models with the direct decay of the squark into Standard Model particles, have been performed...
Search for Doubly Charged Higgs Bosons with the OPAL detector at LEP (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
A search for pair-produced doubly charged Higgs bosons has been performed using data samples corresponding to an integrated luminosity of about 614 pb-1 collected with the OPAL detector at LEP at...
Particle multiplicity of unbiased gluon jets from $e^+ e^-$ three-jet events (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
The charged particle multiplicities of two- and three-jet events from the reaction e+e- -> Z0 -> hadrons are measured for Z0 decays to light quark (uds) flavors. Using recent theoretical expressions...
Search for Yukawa Production of a Light Neutral Higgs Boson at LEP (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
Within a Two-Higgs-Doublet Model (2HDM) a search for a light Higgs boson in the mass range of 4-12 GeV has been performed in the Yukawa process e+e- -> b bbar A/h -> b bbar tau+tau-, using the data...
Genuine Correlations of Like-Sign Particles in Hadronic $Z^0$ Decays (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
Correlations among hadrons with the same electric charge produced in Z0 decays are studied using the high statistics data collected from 1991 through 1995 with the OPAL detector at LEP. Normalized...
Search for Single Top Quark Production at LEP2 (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
A search for single top quark production via flavour changing neutral currents (FCNC) was performed with data collected by the OPAL detector at the e+e- collider LEP. Approximately 600 pb-1 of data...
Measurement of the Hadronic Cross-Section for the Scattering of Two Virtual Photons at LEP (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
The interaction of virtual photons is investigated using the reaction e+e- -> e+e- hadrons based on data taken by the OPAL experiment at e+e- centre-of-mass energies sqrt(s_ee)=189-209 GeV, for W>5...
Measurement of $Z/\gamma^{*}$ production in Compton scattering of quasi-real photons (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
The process e+ e- -> e+ e- Z/gamma* is studied with the OPAL detector at LEP at a centre of mass energy of sqrt(s) = 189 GeV. The cross-section times the branching ratio of the Z/gamma* decaying into...
Determination of the b Quark Mass at the Z Mass Scale (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
In hadronic decays of Z bosons recorded with the OPAL detector at LEP, events containing b quarks were selected using the long lifetime of b flavoured hadrons. Comparing the 3-jet rate in b events...
Search for Lepton Flavour Violation in $e^+e^-$ Collisions at $\sqrt{s}$ = 189 - 209 GeV (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
We search for lepton flavour violating events (e mu, e tau and mu tau) that could be directly produced in e+e- annihilations, using the full available data sample collected with the OPAL detector at...
Measurement of the Branching Ratio for the Process $b \to \tau^{-}\overline{\nu}_{\tau}X$ (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
The inclusive branching ratio for the process b -> tau nu X has been measured using hadronic Z decays collected by the OPAL experiment at LEP in the years 1992-2000. The result is: BR(b -> tau nu X)...
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA (2001)
Badelek, B., Blochinger, C., Blumlein, J., Boos, E., Brinkmann, R., Burkhardt, H., ...
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA (2001)
Badelek, B, Blochinger, C, Blumlein, J, Boos, E, Brinkmann, R, Burkhardt, H, ...
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA
Angular Analysis of the Muon Pair Asymmetry at LEP 1 (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
Data on muon pair production obtained by the OPAL collaboration at centre of mass energies near the Z peak are analysed. Small angular mismatches between the directions of the two muons are used to...
Measurement of |$V_{ub}$| using b hadron semileptonic decays (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
The magnitude of the CKM matrix element Vub is determined by measuring the inclusive charmless semileptonic branching fraction of beauty hadrons at OPAL based on b -> Xu l nu event topology and...
TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider (2001)
Miller, D. J., Richard, F., Zerwas, P. M., Aguilar-Saavedra, J. A., Alcaraz, J., ...
The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Abbiendi, G, Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
A search for first generation scalar and vector leptoquarks (LQ) as well as for squarks in R-parity violating SUSY models has been performed using e+e- collisions collected with the OPAL detector at...
TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider (2001)
Heuer, RD, Miller, DJ, Richard, F, Zerwas, PM, Aguilar-Saavedra, JA, Alcaraz, J, ...
The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Precision Neutral Current Asymmetry Parameter Measurements from the Tau Polarization at LEP (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
Measurements of the tau lepton polarization and forward-backward polarization asymmetry near the Z resonance using the OPAL detector are described. The measurements are based on analyses of tau -> e...
Measurement of the Branching Ratio for $D_{s} \to \tau\nu_{\tau}$ Decays (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
Using about 3.9 million hadronic Z decays from e+e- collisions recorded by the OPAL detector at LEP at centre-of-mass energies near MZ the branching ratio for the decay D_s -> tau nu_tau has been...
A Simultaneous Measurement of the QCD Colour Factors and the Strong Coupling (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
Using data from e+e- annihilation into hadrons, taken with the OPAL detector at LEP at the Z pole between 1991 and 1995, we performed a simultaneous measurement of the colour factors of the...
A Search for a Narrow Radial Excitation of the $D^{*\pm}$ Meson (2001)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
A sample of 3.73 million hadronic Z decays, recorded with the OPAL detector at LEP in the years 1991-95, has been used to search for a narrow resonance corresponding to the decay of the D*'+/-(2629)...
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
A search for the Standard Model Higgs boson has been performed with the OPAL detector at LEP based on the full data sample collected at sqrt(s) = 192-209 GeV in 1999 and 2000, corresponding to an...
A Simultaneous measurement of the QCD color factors and the strong coupling (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, PF, Alexander, G, Allison, J, ...
A Search for a narrow radial excitation of the D*+- meson (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Determination of the b quark mass at the Z mass scale (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Angular analysis of the muon pair asymmetry at LEP I (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Genuine correlations of like - sign particles in hadronic Z0 decays (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the branching ratio for D(s)- ---> tau- anti-nu(tau) decays (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Precision neutral current asymmetry parameter measurements from the tau polarization at LEP (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of |V(ub)| using b hadron semileptonic decay (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of Z / gamma* production in Compton scattering of quasi-real photons (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the branching ratio for the process b ---> tau- anti-nu(tau) X (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the hadronic cross-section for the scattering of two virtual photons at LEP (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Particle multiplicity of unbiased gluon jets from e+ e- three jet events (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for lepton flavor violation in e+ e- collisions at s**(1/2) = 189-GeV - 209-GeV (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for single top quark production at LEP-2 (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for Yukawa production of a light neutral Higgs boson at LEP (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for doubly charged Higgs bosons with the OPAL detector at LEP (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Search for leptoquarks in electron photon scattering at s(e e)**(1/2) up to 209-GeV at LEP (2001)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA (2001)
Badelek, B, Blochinger, C, Blumlein, J, Boos, E, Brinkmann, R, Burkhardt, H, ...
TESLA Technical Design Report, Part VI, Chapter 1: The Photon Collider at TESLA
TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider (2001)
Heuer, RD, Miller, DJ, Richard, F, Zerwas, PM, Aguilar-Saavedra, JA, Alcaraz, J, ...
The TESLA Technical Design Report Part III: Physics at an e+e- Linear Collider
Dijet Production in Charged and Neutral Current $e^{+}p$ Interactions at High $Q^{2}$ (2001)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Jet production in charged and neutral current events in the kinematic range of Q^2 from 640 to 35000 GeV^2 is studied in deep-inelastic positron-proton scattering at HERA. The measured rate of...
Dijet Production in Charged and Neutral Current $e^{+}p$ Interactions at High $Q^{2}$ (2001)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Jet production in charged and neutral current events in the kinematic range of Q^2 from 640 to 35000 GeV^2 is studied in deep-inelastic positron-proton scattering at HERA. The measured rate of...
Dijet Production in Charged and Neutral Current $e^{+}p$ Interactions at High $Q^{2}$ (2001)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Jet production in charged and neutral current events in the kinematic range of Q^2 from 640 to 35000 GeV^2 is studied in deep-inelastic positron-proton scattering at HERA. The measured rate of...
Dijet Production in Charged and Neutral Current $e^{+}p$ Interactions at High $Q^{2}$ (2001)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Jet production in charged and neutral current events in the kinematic range of Q^2 from 640 to 35000 GeV^2 is studied in deep-inelastic positron-proton scattering at HERA. The measured rate of...
Dijet Production in Charged and Neutral Current $e^{+}p$ Interactions at High $Q^{2}$ (2001)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Jet production in charged and neutral current events in the kinematic range of Q^2 from 640 to 35000 GeV^2 is studied in deep-inelastic positron-proton scattering at HERA. The measured rate of...
Precise Determination of the Z Resonance Parameters at LEP: Zedometry (2000)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
This final analysis of hadronic and leptonic cross-sections and of leptonic forward-backward asymmetries in e+e- collisions with the OPAL detector makes use of the full LEP1 data sample comprising...
A Study of $B_{s}$ Meson Oscillation Using $D_{s}^{-}$-Lepton Correlations (2000)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
From data collected around the Z resonance by the OPAL detector at LEP a sample of Bs decays was obtained using Ds^-l^+ combinations, where the Ds^- was fully reconstructed in the phi pi-, K*0K- and...
Charged Multiplicities in Z Decays into u, d, and s Quarks (2000)
Abbiendi, G, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, Anagnostou, G, ...
About 4.4 million hadronic decays of Z bosons, recorded by the OPAL detector at LEP at a centre-of-mass energy of around sqrt(s) = 91.2 GeV, are used to determine the mean charged particle...
The gluon content of the photon from di-jet production at the photon-photon collider (2000)
A study of di-jet measurements at a future photon collider is reported. The sensitivity to extract the gluon distribution is discussed. The results are compared with calculations for a linear e+e-...
Measurement of Di-jet Cross-Sections in Photoproduction and Photon Structure (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The production of hard di-jet events in photoproduction at HERA is dominatedby resolved photon processes in which a parton in the photon with momentumfraction x_gamma is scattered from a parton in...
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
The rates are measured per hadronic Z decay for gluon splitting to bb(bar) quark pairs, g_bb, and of events containing two bb(bar) quark pairs, g_4b, using a sample of four-jet events selected from...
Abbiendi, G, Abbiendi, G, Ackerstaff, K, Ainsley, C, Alexander, Gideon, Allison, J, ...
From about 4 million hadronic Z decays recorded by the OPAL detector on and near to the Z resonance, we select a sample of more than 570000 inclusively reconstructed B mesons. Orbitally-excited...
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
The lifetime and oscillation frequency of the B0 meson has been measured using B0->D*+l-v decays recorded on the Z0 peak with the OPAL detector at LEP. The D*+ -> D0pi+ decays were reconstructed...
The Hadronic Picture of the Photon (2000)
The hadronic interactions of the photon are studied in terms of new measurements of the total hadronic cross section and di-jet production in photon-photon collisions at LEP2.
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The reaction e+p --> e+X is studied with the H1 detector at Hera. The data cover momentum transfers Q^2 between 200 GeV^2 and 30,000 GeV^2 and correspond to an integrated luminosity of 35.6 pb^(-1)....
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
A measurement of triple gauge boson couplings is presented, based on W-pair data recorded by the OPAL detector at LEP during 1998 at a centre-of-mass energy of 189 GeV with an integrated luminosity...
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
From a data sample of 183 pb^-1 recorded at a center-of-mass energy of roots = 189 GeV with the OPAL detector at LEP, 3068 W-pair candidate events are selected. Assuming Standard Model W boson decay...
A Measurement of the Rate of Charm Production in W Decays (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
Using data recorded at centre-of-mass energies around 183 GeV and 189 GeV with the OPAL detector at LEP, the fundamental coupling of the charm quark to the W boson has been studied. The ratio Rc^W =...
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
Measurements are presented of the polarisation of W+W- boson pairs produced in e+e- collisions, and of CP-violating WWZ and WWGamma trilinear gauge couplings. The data were recorded by the OPAL...
A Study of One-Prong Tau Decays with a Charged Kaon (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
From an analysis of the ionisation energy loss of charged particles selected from 110326 e+e- -> tau+tau- candidates recorded by the OPAL detector at e+e- centre-of-mass energies near the Z0...
Measurement of the Mass and Width of the W Boson in $e^{+}e^{-}$ Collisions at 189 GeV (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
The mass and width of the W boson are determined in e+e- collisions at LEP using 183 pb^-1 of data recorded at a centre-of-mass energy roots=189 GeV with the OPAL detector. The invariant mass...
Measurement of elastic electroproduction of $\Phi$ mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Two Higgs Doublet Model and Model Independent Interpretation of Neutral Higgs Boson Searches (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
Searches for the neutral Higgs bosons h0 and A0, are used to obtain limits on the Type II Two Higgs Doublet Model (2HDM(II)) with no CP-violation in the Higgs sector and no additional particles...
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
The inclusive production rate of phi mesons from the decay of b hadrons produced in Z0 decays was measured to be Br(b->phi+X) = 0.0282+-0.0013(stat.)+-0.0019(syst.), using data collected by the OPAL...
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
The data recorded at a centre-of-mass energy of 189GeV by the OPAL detector at LEP are used to search for trilinear couplings of the neutral gauge bosons in the process e+e- --> Z-gamma. The...
Multiplicities of $\pi^{0}$, $\eta$, $K^{0}$ and of charged particles in quark and gluon jets (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
We compared the multiplicities of pizero, eta, Kzero and of charged particles in quark and gluon jets in 3-jet events, as measured by the OPAL experiment at LEP. The comparisons were performed for...
Measurement of the Low-x Behaviour of the Photon Structure Function $F2-\gamma$ (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
The photon structure function F2-gamma(x,Q**2) has been measured using data taken by the OPAL detector at centre-of-mass energies of 91Gev, 183Gev and 189Gev, in Q**2 ranges of 1.5 to 30.0 GeV**2...
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
Searches for final states expected in models with light gravitinos have been performed, including experimental topologies with multi-leptons with missing energy, leptons and photons with missing...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The triple-differential dijet cross-section, d^3 sigma_{ep}/dQ2 dE_t2 dxgjets, is measured with the H1 detector at HERA as a function of the photon virtuality Q^2, the fraction of the photon's...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The triple-differential dijet cross-section, d^3 sigma_{ep}/dQ2 dE_t2 dxgjets, is measured with the H1 detector at HERA as a function of the photon virtuality Q^2, the fraction of the photon's...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The triple-differential dijet cross-section, d^3 sigma_{ep}/dQ2 dE_t2 dxgjets, is measured with the H1 detector at HERA as a function of the photon virtuality Q^2, the fraction of the photon's...
The Parton Content of the Photon (2000)
The structure of the photon is studied in photon-photon collisions at LEP. New measurements have become available exploring the structure function F2g of the photon to the lowest values of x yet,...
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Two-particle correlations in invariant mass are studied separately for like-sign and unlike-sign charged particles produced in deep inelastic positron-proton scattering in a new kinematical domain....
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Two-particle correlations in invariant mass are studied separately for like-sign and unlike-sign charged particles produced in deep inelastic positron-proton scattering in a new kinematical domain....
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Two-particle correlations in invariant mass are studied separately for like-sign and unlike-sign charged particles produced in deep inelastic positron-proton scattering in a new kinematical domain....
A measurement of the $\tau$ mass and the first CPT test with $\tau$ leptons (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
We measure the mass of the tau lepton to be 1775.1+-1.6(stat)+-1.0(sys t.) MeV using tau pairs from Z0 decays. To test CPT invariance we compare the masses of the positively and negatively charged...
Photonic events with missing energy in $e^{+}e^{-}$ collisions at $\sqrt{s}=189 GeV$ (2000)
Abbiendi, G, Ackerstaff, K, Ainsley, C, Åkesson, P F, Alexander, Gideon, Allison, J, ...
Photonic events with large missing energy have been observed in e+e- collisions at a centre-of-mass energy of 189GeV using the OPAL detector at LEP. Results are presented for event topologies...
Measurements of transverse energy flow in deep inelastic scattering at Hera (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Measurements of transverse energy flow are presented for neutral current deep-inelastic scattering events produced in positron-proton collisions at HERA. The kinematic range covers squared momentum...
Z boson pair production in $e^{+}e^{-}$ collisions at $\sqrt{s}$ = 183 and 189 GeV (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
A study of Z boson pair production in e+e- annihilation at center-of-mass energies near 183 GeV and 189 GeV is reported. Final states containing only leptons, (l+l-l+l- and l+l-nu nubar), quark and...
Measurement of |$V_{cb}$| using $\overline{B}^{0} \to D^{*+}l^{-}\overline{\nu}$ decays (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
The magnitude of the Cabibbo-Kobayashi-Maskawa matrix element Vcb has been measured using B0 to D*l nu decays recorded on the Z0 peak using the OPAL detector at LEP. The D* to D0 pi+ decays were...
Transverse and Longitudinal Bose Einstein Correlations in hadronic $Z^0$ Decays (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
Bose-Einstein correlations in pairs of identical charged pions produced in asample of 4.3 million Z0 hadronic decays are studied as a function of the threecomponents of the momentum difference,...
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
The cross-section ratio Rb=sigma(e+e- to b-antib)/sigma(e+e- to q-antiq) andthe bottom and charm forward-backward asymmetries AFB^b and AFB^c are measuredusing event samples collected by the OPAL...
Search for new Physics in rare B Decays (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
A search for the decay B+- to K+-K+-pi-+ was performed using data collected by the OPAL detector at LEP. These decays are strongly suppressed in the Standard Model but could occur with a higher...
QCD studies with $e^{+}e^{-}$ annihilation data at 172-189 GeV (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
We have studied hadronic events from e+e- annihilation data at centre-of-mass energies of sqrt{s}=172, 183 and 189 GeV. The total integrated luminosity of the three samples, measured with the OPAL...
Search for new Physics in rare B Decays (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
A search for the decay B+- to K+-K+-pi-+ was performed using data collected by the OPAL detector at LEP. These decays are strongly suppressed in the Standard Model but could occur with a higher...
Leading Particle Production in Light Flavour Jets (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
The energy distribution and type of the particle with the highest momentum in quark jets are determined for each of the five quark flavours making only minimal model assumptions. The analysis is...
Pfeifenschneider, P, Biebel, O, Movilla-Fernández, P A, Abbiendi, G, Ackerstaff, K, Åkesson, P F, ...
We employ data taken by the JADE and OPAL experiments for an integrated QCD study in hadronic e+e- annihilations at c.m.s. energies ranging from 35 GeV through 189 GeV. The study is based on...
Search for Unstable Heavy and Excited Leptons at LEP2 (2000)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
Searches for unstable neutral and charged heavy leptons, N and L+-, and for excited states of neutral and charged leptons, nu*, e*, mu*, and tau*, have been performed in e+e- collisions using data...
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
Bose-Einstein correlations in pairs of charged kaons produced in a sample of 3.9 million hadronic Z0 decays have been measured with the OPAL experiment at LEP. Charged kaons were identified in the...
Measurement of dijet cross-sections in photoproduction and photon structure (2000)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
A Search for excited fermions at HERA (2000)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Elastic photoproduction of J / psi and Upsilon mesons at HERA (2000)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Inclusive photoproduction of neutral pions in the photon hemisphere at HERA (2000)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Dijet production in charged and neutral current e+ p interactions at high Q**2 (2000)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Measurement of elastic electroproduction of phi mesons at HERA (2000)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
A Measurement of the rate of charm production in W decays (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Bose-Einstein correlations in K+- K+- pairs from Z0 decays into two hadronic jets (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
A Measurement of the tau mass and the first CPT test with tau leptons (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
First measurement of the inclusive branching ratio of b hadrons to phi mesons in Z0 decays (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
A Study of one prong tau decays with a charged kaon (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Charged multiplicities in Z decays into u, d, and s quarks (2000)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
A Study of B(s) meson oscillation using D(s)- lepton correlations (2000)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Measurement of the low x behavior of the photon structure function F(2)gamma (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Measurement of the mass and width of the W boson in e+ e- collisions at 189-GeV (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Measurement of |V(cb)| using anti-B0 ---> D*+ lepton- anti-neutrino decays (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
Photonic events with missing energy in e+ e- collisions at S**(1/2) = 189-GeV (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Multiplicities of pi0, eta, K0 and of charged particles in quark and gluon jets (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Precise determination of the Z resonance parameters at LEP: 'Zedometry' (2000)
OPAL Collaboration, Abbiendi, G, Ainsley, C, Akesson, P F, Alexander, G, Allison, J, ...
Transverse and longitudinal Bose Einstein correlations in hadronic Z0 decays (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
Searches for prompt light gravitino signatures in e+ e- collisions at S**(1/2) = 189-GeV (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Two Higgs doublet model and model independent interpretation of neutral Higgs boson searches (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
W+ W- production cross-section and W branching fractions in e+ e- collisions at 189-GeV (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Ainsley, C, Akesson, P F, Alexander, G, ...
Z boson pair production in e+ e- collisions at S**(1/2) = 183-GeV and 189-GeV (2000)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Abstract: The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squared Q^2 between 150 and 30,000 GeV2 and with Bjorken x...
Inclusive Photoproduction of Neutral Pions in the Photon Hemisphere at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A Search for Excited Fermions at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Measurement of Di-jet Cross-Sections in Photoproduction and Photon Structure (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The production of hard di-jet events in photoproduction at HERA is dominatedby resolved photon processes in which a parton in the photon with momentumfraction x_gamma is scattered from a parton in...
Elastic Photoproduction of $J/\psi$ and $\Upsilon$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The reaction e+p --> e+X is studied with the H1 detector at Hera. The data cover momentum transfers Q^2 between 200 GeV^2 and 30,000 GeV^2 and correspond to an integrated luminosity of 35.6 pb^(-1)....
Measurement of elastic electroproduction of $\Phi$ mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Measurement of di-jet cross-sections in photoproduction and photon structure (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Electroproduction of $\rho$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The elastic electroproduction of rho mesons is studied at HERA with the H1 detector for a photon virtuality in the range 1 Q^2 60 GeV^2 and for a hadronic centre of mass energy in the range 30 W 140...
Dijet event rates in deep inelastic scattering at Hera (2000)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Ayyaz, I., ...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The triple-differential dijet cross-section, d^3 sigma_{ep}/dQ2 dE_t2 dxgjets, is measured with the H1 detector at HERA as a function of the photon virtuality Q^2, the fraction of the photon's...
Measurements of transverse energy flow in deep inelastic scattering at Hera (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Measurements of transverse energy flow are presented for neutral current deep-inelastic scattering events produced in positron-proton collisions at HERA. The kinematic range covers squared momentum...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Abstract: The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squared Q^2 between 150 and 30,000 GeV2 and with Bjorken x...
Inclusive Photoproduction of Neutral Pions in the Photon Hemisphere at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A Search for Excited Fermions at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Measurement of Di-jet Cross-Sections in Photoproduction and Photon Structure (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The production of hard di-jet events in photoproduction at HERA is dominatedby resolved photon processes in which a parton in the photon with momentumfraction x_gamma is scattered from a parton in...
Elastic Photoproduction of $J/\psi$ and $\Upsilon$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The reaction e+p --> e+X is studied with the H1 detector at Hera. The data cover momentum transfers Q^2 between 200 GeV^2 and 30,000 GeV^2 and correspond to an integrated luminosity of 35.6 pb^(-1)....
Measurement of elastic electroproduction of $\Phi$ mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Measurement of di-jet cross-sections in photoproduction and photon structure (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Electroproduction of $\rho$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The elastic electroproduction of rho mesons is studied at HERA with the H1 detector for a photon virtuality in the range 1 Q^2 60 GeV^2 and for a hadronic centre of mass energy in the range 30 W 140...
Dijet event rates in deep inelastic scattering at Hera (2000)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Ayyaz, I., ...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The triple-differential dijet cross-section, d^3 sigma_{ep}/dQ2 dE_t2 dxgjets, is measured with the H1 detector at HERA as a function of the photon virtuality Q^2, the fraction of the photon's...
Measurements of transverse energy flow in deep inelastic scattering at Hera (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Measurements of transverse energy flow are presented for neutral current deep-inelastic scattering events produced in positron-proton collisions at HERA. The kinematic range covers squared momentum...
Inclusive Photoproduction of Neutral Pions in the Photon Hemisphere at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A Search for Excited Fermions at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Photoproduction of $J/\psi$ and $\Upsilon$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Electroproduction of $\rho$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The elastic electroproduction of rho mesons is studied at HERA with the H1 detector for a photon virtuality in the range 1 Q^2 60 GeV^2 and for a hadronic centre of mass energy in the range 30 W 140...
Inclusive Photoproduction of Neutral Pions in the Photon Hemisphere at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A Search for Excited Fermions at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Photoproduction of $J/\psi$ and $\Upsilon$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Electroproduction of $\rho$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The elastic electroproduction of rho mesons is studied at HERA with the H1 detector for a photon virtuality in the range 1 Q^2 60 GeV^2 and for a hadronic centre of mass energy in the range 30 W 140...
Inclusive Photoproduction of Neutral Pions in the Photon Hemisphere at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A Search for Excited Fermions at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Photoproduction of $J/\psi$ and $\Upsilon$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Elastic Electroproduction of $\rho$ Mesons at HERA (2000)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The elastic electroproduction of rho mesons is studied at HERA with the H1 detector for a photon virtuality in the range 1 Q^2 60 GeV^2 and for a hadronic centre of mass energy in the range 30 W 140...
Measurement of Open Beauty Production at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
$\tau$ decays with neutral kaons (1999)
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
The branching ratio of the tau lepton to a neutral K meson is measured from a sample of approximately 200,000 tau decays recorded by the OPAL detector at centre-of-mass energies near the Z0...
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
The inclusive production of D*+- mesons in photon-photon collisions has been measured using the OPAL detector at LEP at e+e- centre-of-mass energies of 183 and 189GeV. The D* mesons are reconstructed...
Abbiendi, G, Ackerstaff, K, Åkesson, P F, Alexander, Gideon, Allison, J, Anderson, K J, ...
A study of W+W- events accompanied by hard photon radiation produced in e+e- collisions at LEP is presented. Events consistent with two on-shell W-bosons and an isolated photon are selected from...
Hadronization Corrections to Jet Cross Sections in Deep-Inelastic Scattering (1999)
The size of non-perturbative corrections to high E_T jet production in deep-inelastic scattering is reviewed. Based on predictions from fragmentation models, hadronization corrections for different...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies ET,Breit 5 GeV are selected in the Breit frame...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies ET,Breit 5 GeV are selected in the Breit frame...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies ET,Breit 5 GeV are selected in the Breit frame...
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
With the H1 detector at the ep collider HERA, D* meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers Q^2>2 GeV2 and in photoproduction at...
Measurement of leading proton and neutron production in deep inelastic scattering at HERA. (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Observation of Events at Very High $Q^2$ in ep Collisions at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
A Measurement of the Proton Structure Function $F_2(x,Q^2)$ at Low x and Low $Q^2$ at HERA (1999)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Elastic electroproduction of rho mesons at HERA (1999)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Charmonium production in deep inelastic scattering at HERA (1999)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
A Search for leptoquark bosons and lepton flavor violation in e+ p collisions at HERA (1999)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Forward pi0 meson production at HERA (1999)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Measurements of transverse energy flow in deep inelastic scattering at HERA (1999)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Measurement of open beauty production at HERA (1999)
Adloff, C, Andreev, V, Andrieu, B, Arkadov, V, Astvatsatourov, A, ...
Leading particle production in light flavor jets (1999)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, PF, Alexander, G, Allison, J, ...
Measurements of R(b), A**b(FB), and A**c(FB) in e+ e- collisions at 130-GeV - 189-GeV (1999)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
QCD studies with e+ e- annihilation data at 172-GeV - 189-GeV (1999)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
Search for new physics in rare B decays (1999)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
Tau decays with neutral kaons (1999)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
Search for unstable heavy and excited leptons at LEP-2 (1999)
OPAL Collaboration, Abbiendi, G, Ackerstaff, K, Akesson, P F, Alexander, G, Allison, J, ...
JADE Collaboration, OPAL Collaboration, Pfeifenschneider, P, Biebel, O, Movilla Fernandez, P A, Abbiendi, G, ...
A Search for Leptoquark Bosons and Lepton Flavor Violation in $e^{+} p$ Collisions at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994 to 1997 data corresponding to an integrated luminosity of 37pb^-1. First...
Forward $\pi^0$ meson production at Hera (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
High transverse momentum pi0-mesons have been measured with the H1 detector at HERA in deep-inelastic ep scattering events at low Bjorken-x, down to x
Measurement of Open Beauty Production at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Charmonium Production in Deep Inelastic Scattering at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The electroproduction of J/psi and psi(2S) mesons is studied in elastic, quasi-elastic and inclusive reactions for four momentum transfers 2 Q^2 80 GeV^2 and photon-proton centre of mass energies 25...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies ET,Breit 5 GeV are selected in the Breit frame...
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
With the H1 detector at the ep collider HERA, D* meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers Q^2>2 GeV2 and in photoproduction at...
Measurement of leading proton and neutron production in deep inelastic scattering at HERA. (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Diffractive dijet production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Forward Jet and Particle Production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
A Search for Leptoquark Bosons and Lepton Flavor Violation in $e^{+} p$ Collisions at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994 to 1997 data corresponding to an integrated luminosity of 37pb^-1. First...
Forward $\pi^0$ meson production at Hera (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
High transverse momentum pi0-mesons have been measured with the H1 detector at HERA in deep-inelastic ep scattering events at low Bjorken-x, down to x
Measurement of Open Beauty Production at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Charmonium Production in Deep Inelastic Scattering at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The electroproduction of J/psi and psi(2S) mesons is studied in elastic, quasi-elastic and inclusive reactions for four momentum transfers 2 Q^2 80 GeV^2 and photon-proton centre of mass energies 25...
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
Internal jet structure in dijet production in deep-inelastic scattering is measured with the H1 detector at HERA. Jets with transverse energies ET,Breit 5 GeV are selected in the Breit frame...
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
With the H1 detector at the ep collider HERA, D* meson production cross sections have been measured in deep inelastic scattering with four-momentum transfers Q^2>2 GeV2 and in photoproduction at...
Measurement of leading proton and neutron production in deep inelastic scattering at HERA. (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Diffractive dijet production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Forward Jet and Particle Production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
A Search for Leptoquark Bosons and Lepton Flavor Violation in $e^{+} p$ Collisions at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994 to 1997 data corresponding to an integrated luminosity of 37pb^-1. First...
Charmonium Production in Deep Inelastic Scattering at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The electroproduction of J/psi and psi(2S) mesons is studied in elastic, quasi-elastic and inclusive reactions for four momentum transfers 2 Q^2 80 GeV^2 and photon-proton centre of mass energies 25...
Diffractive dijet production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Forward Jet and Particle Production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
A Search for Leptoquark Bosons and Lepton Flavor Violation in $e^{+} p$ Collisions at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994 to 1997 data corresponding to an integrated luminosity of 37pb^-1. First...
Charmonium Production in Deep Inelastic Scattering at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The electroproduction of J/psi and psi(2S) mesons is studied in elastic, quasi-elastic and inclusive reactions for four momentum transfers 2 Q^2 80 GeV^2 and photon-proton centre of mass energies 25...
Diffractive dijet production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Forward Jet and Particle Production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
A Search for Leptoquark Bosons and Lepton Flavor Violation in $e^{+} p$ Collisions at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
A search for new bosons possessing couplings to lepton-quark pairs is performed in the H1 experiment at HERA using 1994 to 1997 data corresponding to an integrated luminosity of 37pb^-1. First...
Charmonium Production in Deep Inelastic Scattering at HERA (1999)
Adloff, C., Andreev, V., Andrieu, B., Arkadov, V., Astvatsatourov, A., Ayyaz, I., ...
The electroproduction of J/psi and psi(2S) mesons is studied in elastic, quasi-elastic and inclusive reactions for four momentum transfers 2 Q^2 80 GeV^2 and photon-proton centre of mass energies 25...
Diffractive dijet production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Forward Jet and Particle Production at HERA (1999)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
Measurement of Event Shape Variables in Deep Inelastic $e^{+}p$ Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Low Q$^{2}$ Jet Production at HERA and Virtual Photon Structure (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Inclusive Measurement of Diffractive Deep-inelastic ep Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Evolution of ep Fragmentation and Multiplicity Distributions in the Breit Frame (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Inclusive Measurement of Diffractive Deep-inelastic ep Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Evolution of ep Fragmentation and Multiplicity Distributions in the Breit Frame (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Inclusive Measurement of Diffractive Deep-inelastic ep Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Evolution of ep Fragmentation and Multiplicity Distributions in the Breit Frame (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Search for Excited Fermions with the H1 Detector (1998)
Aid, S., Anderson, M., Andreev, V., Andrieu, B., Babaev, A., Bahr, J., ...
Search for Excited Fermions with the H1 Detector (1998)
Aid, S., Anderson, M., Andreev, V., Andrieu, B., Babaev, A., Bahr, J., ...
Search for Excited Fermions with the H1 Detector (1998)
Aid, S., Anderson, M., Andreev, V., Andrieu, B., Babaev, A., Bahr, J., ...
Determination of the Longitudinal Proton Structure Function $F_{L}(x,Q^{2})$ at Low $x$ (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arndt, C., ...
Determination of the Longitudinal Proton Structure Function $F_{L}(x,Q^{2})$ at Low $x$ (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arndt, C., ...
Determination of the Longitudinal Proton Structure Function $F_{L}(x,Q^{2})$ at Low $x$ (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arndt, C., ...
Measurement of charged particle transverse momentum spectra in deep inelastic scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Babaev, A., ...
Measurement of charged particle transverse momentum spectra in deep inelastic scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Babaev, A., ...
Measurement of charged particle transverse momentum spectra in deep inelastic scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Babaev, A., ...
High transverse momentum pi^0 -mesons and charged particles are measured in deep inelastic e-p scattering events at low Bjorken-x taken with the H1 detector at HERA. The production of high-pt...
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Diffractive dijet production at HERA (1998)
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Hadron production in diffractive deep inelastic scattering (1998)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Dijet event rates in deep inelastic scattering at HERA (1998)
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Forward jet and particle production at HERA (1998)
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Measurement of leading proton and neutron production in deep inelastic scattering at HERA (1998)
Adloff, C, Anderson, M, Andreev, V, Andrieu, B, Arkadov, V, ...
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
The double-differential inclusive di-jet cross section in photoproduction processes is measured with the H1 detector at HERA. The cross section is determined as a function of the average transverse...
Thrust Jet Analysis of Deep-Inelastic Large-Rapidity-Gap Events (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Photoproduction of $\psi(2S)$ Mesons at HERA (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Quasi-elastic (z 0.95) photo-production of psi' mesons has been observed at HERA for photon-proton centre-of-mass energies in the range 40 to 160 GeV. The psi' mesons were identified through their...
Hadron Production in Diffractive Deep-Inelastic Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
The double-differential inclusive di-jet cross section in photoproduction processes is measured with the H1 detector at HERA. The cross section is determined as a function of the average transverse...
Thrust Jet Analysis of Deep-Inelastic Large-Rapidity-Gap Events (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Photoproduction of $\psi(2S)$ Mesons at HERA (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Quasi-elastic (z 0.95) photo-production of psi' mesons has been observed at HERA for photon-proton centre-of-mass energies in the range 40 to 160 GeV. The psi' mesons were identified through their...
Hadron Production in Diffractive Deep-Inelastic Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Hadron Production in Diffractive Deep-Inelastic Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Hadron Production in Diffractive Deep-Inelastic Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Hadron Production in Diffractive Deep-Inelastic Scattering (1998)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
A Measurement of the proton structure function f2 (x, q**2) at low x and low q**2 at HERA (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Bose-Einstein correlations in deep inelastic e p scattering at HERA (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Diffraction dissociation in photoproduction at HERA (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Measurement of event shape variables in deep inelastic e p scattering (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Evolution of e p fragmentation and multiplicity distributions in the Breit frame (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Inclusive measurement of diffractive deep inelastic ep scattering (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Low Q**2 jet production at HERA and virtual photon structure (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Observation of events at very high Q**2 in e p collisions at HERA (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Proton dissociative rho and elastic phi electroproduction at HERA (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Photoproduction of K0 and Lambda at HERA and a comparison with deep inelastic scattering (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Thrust jet analysis of deep inelastic large rapidity gap events (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Photoproduction of psi (2S) mesons at HERA (1997)
Adloff, C, Aid, S, Anderson, M, Andreev, V, Andrieu, B, ...
Proton Dissociative $\rho$ and Elastic $\phi$ Electroproduction at HERA (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
The electroproduction of rho mesons with proton diffractive dissociation for Q^2 7 GeV^2 and the elastic electroproduction of Phi mesons for Q^2 6 Gev^2 are studied in e^+ p collisions at HERA with...
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Two-particle correlations in invariant mass are studied separately for like-sign and unlike-sign charged particles produced in deep inelastic positron-proton scattering in a new kinematical domain....
Observation of Events at Very High $Q^2$ in ep Collisions at HERA (1997)
Adloff, C., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., Arndt, C., ...
A Measurement of the Proton Structure Function $F_2(x,Q^2)$ at Low x and Low $Q^2$ at HERA (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Diffraction dissociation in photoproduction at HERA. (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Measurement of Event Shape Variables in Deep Inelastic $e^{+}p$ Scattering (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Low Q$^{2}$ Jet Production at HERA and Virtual Photon Structure (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Inclusive Measurement of Diffractive Deep-inelastic ep Scattering (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Evolution of ep Fragmentation and Multiplicity Distributions in the Breit Frame (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Bose-Einstein Correlations in Deep Inelastic ep Scattering at HERA (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arkadov, V., ...
Search for Excited Fermions with the H1 Detector (1997)
Aid, S., Anderson, M., Andreev, V., Andrieu, B., Babaev, A., Bahr, J., ...
Scale influence on the energy dependence of photon-proton cross-sections (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arndt, C., ...
Determination of the Longitudinal Proton Structure Function $F_{L}(x,Q^{2})$ at Low $x$ (1997)
Adloff, C., Aid, S., Anderson, M., Andreev, V., Andrieu, B., Arndt, C., ...