Al, K Ackerstaff Et, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
The inclusive production of prompt photons with energy above 10 GeV is measured using the OPAL detector in hadronic Z^0 decays at LEP. In contrast to previous measurements, the prompt photons were...
Measurement of f(c -> D^*+ X), f(b -> D^*+ X) and Gamma_cc(bar)/Gamma_had using D^*+/- Mesons (2008)
Al, K Ackerstaff Et, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
The production rates of D^*+/- mesons in charm and bottom events at centre-of-mass energies of about 91 GeV and the partial width of primary cc(bar) pairs in hadronic Z^0 decays have been measured at...
A Measurement of the B_s^0 Lifetime using Reconstructed D_s^- Mesons (2008)
Al, K Ackerstaff Et, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
We report a measurement of the B^0_s meson lifetime from B_s^0 -> D^-_s X decays, where D_s^- mesons are reconstructed in the D_s^- -> phi pi^- and D_s^- -> K^{*0} K^- decay channels. From...
Al, K Ackerstaff Et, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
Production of events with hadronic and leptonic final states has been measured in e^+e^- collisions at centre-of-mass energies of 130-172 GeV, using the OPAL detector at LEP. Cross-sections and...
Energy dependence of phi meson production in central Pb+Pb collisions at the CERN-SPS (2008)
Alt, C., Anticic, T., Baatar, B., Barna, D., Bartke, J., Betev, L., ...
Phi meson production is studied by the NA49 collaboration in central Pb+Pb collisions at 20A, 30A, 40A, 80A and 158A GeV beam energy. The data are compared to measurements at lower and higher...
Event-by-event transverse momentum fluctuations in nuclear collisions at CERN SPS (2007)
Grebieszkow, K., Alt, C., Anticic, T., Baatar, B., Barna, D., Bartke, J., ...
The latest NA49 results on event-by-event transverse momentum fluctuations are presented for central Pb+Pb interactions over the whole SPS energy range (20A - 158A GeV). Two different methods are...
Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, J, Betev, L, ...
The centrality and system size dependence of multiplicity fluctuations of charged particles produced in nuclear collisions at 158 AGeV was studied by the NA49 collaboration. Centrality selected Pb+Pb...
Onset of Deconfinement in Pb+Pb Collisions at the CERN SPS (2006)
Seyboth, P, Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, J, ...
The NA49 fixed-target experiment studied high energy-density matter produced in nucleus-nucleus reactions at the CERN SPS. In central Pb+Pb collisions at 158A GeV the energy density at the early...
Energy Dependence of Multiplicity Fluctuations in Heavy Ion Collisions (2006)
Lungwitz, B, Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, J, ...
The energy dependence of multiplicity fluctuations was studied for the most central $Pb+Pb$ collisions at $20A$, $30A$, $40A$, $80A$ and $158A$ GeV by the NA49 experiment at the CERN SPS. The...
Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...
Interference of neutral kaons in the hadronic decays of the Z$^0$ (2006)
Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...
Interference of neutral kaons in the hadronic decays of the Z$^0$ (2006)
Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...
Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...
Interference of neutral kaons in the hadronic decays of the Z$^0$ (2006)
Abreu, P., Adam, W., Adye, T., Agasi, E., Ajinenko, I., Aleksan, R., ...
Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G D., ...
Elliptic flow of Lambda hyperons in Pb+Pb collisions at 158A GeV (2006)
Stefanek, G, Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, Jerzy, ...
The elliptic flow of Lambda hyperons has been measured by the NA49 experiment at the CERN-SPS in semi-central Pb+Pb collisions at 158A GeV. The standard method of correlating particles with the event...
Inclusive production of charged pions in p+C collisions at 158 GeV/c beam momentum (2006)
Alt, C, Baatar, B, Barna, D, Barr, G, Bartke, Jerzy, Betev, L, ...
The production of charged pions in minimum bias p+C interactions is studied using a sample of 377000 inelastic events obtained with the NA49 detector at the CERN SPS at 158 GeV/c beam momentum. The...
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...
Inclusive Production of Charged Pions in $p^+ p$ Collisions at 158 GeV/c Beam Momentum (2005)
Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, Jerzy, Betev, L, ...
New results on the production of charged pions in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158...
Inclusive production of charged pions in p+p collisions at 158 GeV/c beam momentum (2005)
Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, J, Betev, L, ...
New results on the production of charged pions in p+p interactions are presented. The data come from a sample of 4.8 million inelastic events obtained with the NA49 detector at the CERN SPS at 158...
NA49 results on hadron production: indications of the onset of deconfinement ? (2005)
Lungwitz, B, Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, J, ...
The NA49 experiment at the CERN SPS measured the energy and system size dependence of particle production in A+A collisions. A change of the energy dependence of several hadron production properties...
Upper Limit of D0 Production in Central Pb-Pb Collisions at 158A GeV (2005)
Alt, C, Anticic, T, Baatar, B, Barna, D, Bartke, Jerzy, Betev, L, ...
Results are presented from a search for the decays D0 -> Kmin piplus and D0bar -> Kplus pimin in a sample of 3.8x10^6 central Pb-Pb events collected with a beam energy of 158A GeV by NA49 at the CERN...
Measurement of the mass of the Z boson and the energy calibration of LEP (2005)
Arnaudon, L., Assmann, R., Billan, J., Birr, W., Blondel, A., Bobbink, G., ...
Measurement of the mass of the Z boson and the energy calibration of LEP (2005)
Arnaudon, L., Assmann, R., Billan, J., Birr, W., Blondel, A., Bobbink, G., ...
Measurement of the mass of the Z boson and the energy calibration of LEP (2005)
Arnaudon, L., Assmann, R., Billan, J., Birr, W., Blondel, A., Bobbink, G., ...
ALICE: Physics performance report, Volume 1 (2004)
Carminati, F., Foka, P., Giubellino, P., Morsch, A., Paic, G., ...
ALICE is a general-purpose heavy-ion experiment designed to study the physics of strongly interacting matter and the quarkgluon plasma in nucleusnucleus collisions at the LHC. It currently...
ALICE: Physics performance report, Volume 1 (2004)
Carminati, F., Foka, P., Giubellino, P., Morsch, A., Paic, G., ...
ALICE is a general-purpose heavy-ion experiment designed to study the physics of strongly interacting matter and the quarkgluon plasma in nucleusnucleus collisions at the LHC. It currently...
A Four-Gap Glass-RPC Time-of-Flight Array with 90 ps Time Resolution (2002)
Akindinov, A, Fonte, P, Formenti, F, Golovine, V, Klempt, W, Kluge, A, ...
In this paper, we describe the performance of a prototype developed in the context of the ALICE time-of-flight research and development system. The detector module consists of a 32-channel array of 3...
Development of a TPC detector for the ALICE Experiment (2000)
Bächler, J, Bracinik, J, Fischer, H G, Flammier, M, Janik, R, Legrand, J C, ...
Presentation made at the Wire Chamber Conference '98, also submitted as preprint to Elsevier Preprint (March 1998)A proportional chamber with ring cathode readout is foreseen for the ALICE Time...
Front-End Electronics for the ALICE TPC-Detector (2000)
Bächler, J, Berset, J C, Christiansson, T, Engster, Claude, Esteve-Bosch, R, Fischer, H G, ...
To be published in the proceedings of the 4th Workshop on Electronics for the LHC Experiments, Rome, Italy, 21-25 September 1998.The front-end electronics for the Time Projection Chamber (TPC) for...
A four gap glass RPC time-of-flight array with 90 ps time resolution (1999)
Akindinov, A, Fonte, P, Formenti, F, Golovin, V M, Klempt, W, Kluge, A, ...
In this work we describe the performance of a prototype developped in the context of the ALICE team-of-flight R&D system. The detector module consists of a 32-channel array of 3 x 3 cm2 glass-RPC...
Front-end electronics for the ALICE TPC-detector (1999)
Bächler, J, Berset, J C, Christiansson, T, Engster, Claude, Esteve-Bosch, R, Fischer, H G, ...
The Front-End electronics for the Time Projection Chamber (TPC) for the ALICE experiment consists of 5x105 channels. A single readout channel is comprised of three basic units: a charge sensitive...
Development of a TPC detector for the ALICE experiment (1999)
Bächler, J, Bracinik, J, Fischer, H G, Flammier, M, Janik, R, Legrand, J C, ...
A proportional chamber with ring cathode readout is foreseen for the ALICE Time Projection Chamber. It offers low gas gainoperation, light-weight construction and good pulse shape. The Tape Automatic...
Development of a TPC detector for the ALICE experiment (1999)
Bächler, J, Bracinik, J, Fischer, H G, Flammier, M, Janik, R, Legrand, J C, ...
A proportional chamber with ring cathode readout is foreseen for the ALICE Time Projection Chamber. It offers low gas gainoperation, light-weight construction and good pulse shape. The Tape Automatic...
Measurement of the triple-gluon vertex from 4-jet events at Lep (1999)
Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G.D., ...
Measurement of the triple-gluon vertex from 4-jet events at Lep (1999)
Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G.D., ...
Measurement of the triple-gluon vertex from 4-jet events at Lep (1999)
Abreu, P., Adam, W., Adye, T., Agasi, E., Aleksan, R., Alekseev, G.D., ...
The NA49 large acceptance hadron detector (1999)
Afanasiev, S V, Alber, T, Appelshäuser, H, Bächler, J, Barna, D, Barnby, L S, ...
The NA49 detector is a wide acceptance spectrometer for the study of hadron production in p+p, p+A, and A+A collisions at the CERN SPS. The main components are 4 large volume TPCs for tracking and...
An upper limit on the anomalous magnetic moment of the $\tau$ lepton (1998)
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
Using radiative Z^0 -> \tau^+ \tau^- \gamma events collected with the OPAL detector at LEP at \sqrt{s}=M_Z during 1990-95, a direct study of the electromagnetic current at the \tau\gamma vertex has...
A search for neutral Higgs bosons in the MSSM and models with two scalar field doublets (1998)
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
A search is described for the neutral Higgs bosons h^0 and A^0 predicted by models with two scalar field doublets and, in particular, the Minimal Supersymmetric Standard Model (MSSM). The search in...
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
A search for stable and long-lived massive particles of electric charge |Q/e| = 1 or 2/3, pair-produced in e+e- collisions at centre-of-mass energies from 130 to 183 GeV, is reported by the OPAL...
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
Events with four distinct jets from e^+e^- collisions, collected by the OPAL detector at centre-of-mass energies between 130 and 184 GeV, are analysed for a peak in the sum of dijet masses. This...
Production of $f_{0}(980), f_{2}(1270)$ and $\phi(1020)$ in hadronic $Z^{0}$ decay (1998)
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
Inclusive production of the f_0(980), f_2(1270) and \phi(1020) resonances has been studied in a sample of 4.3 million hadronic Z^0 decays from the OPAL experiment at LEP. A coupled channel analysis...
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
In e^+e^- collisions at centre-of-mass energies around 91 GeV, D^*0 mesons have been reconstructed using data collected with the OPAL detector at LEP. The hadronisation fraction has been measured to...
Measurements of the $B^{0}_s$ and $\Lambda^{0}_b$ lifetimes (1998)
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
This paper presents updated measurements of the lifetimes of the B^0_s meson and the \Lambda_b baryon using 4.4 million hadronic Z^0 decays recorded by the OPAL detector at LEP from 1990 to 1995. A...
Search for charged Higgs bosons in $e^+ e^-$ collisions at $\sqrt{s}$ = 130-172 GeV (1998)
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
A search is described to detect charged Higgs bosons via the process e^+e^- -> H^+H^-, using data collected by the OPAL detector at center-of-mass energies of 130-172 GeV with a total integrated...
Measurement of the one-prong hadronic $\tau$ branching ratios at LEP (1998)
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
The branching ratios of the \tau^- -> h^- \nu_\tau, \tau^- -> h^- \pi^0 1991-1995 data recorded with the OPAL detector at LEP. These branching ratios are measured simultaneously using three selection...
Investigation of CP violation in $B^{0} \to J/\psi K_{s}^{0}$ decays at LEP (1998)
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
An investigation of CP violation was performed using a total of 24 candidates for B^0 -> J/psi K^0_S decay, with a purity of about 60%. These events were selected from 4.4 million hadronic Z^0 decays...
A Search for neutral Higgs bosons in the MSSM and models with two scalar field doublets (1998)
OPAL Collaboration, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
An Upper limit on the anomalous magnetic moment of the tau lepton (1998)
OPAL Collaboration, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
Investigation of CP violation in B0 ---> J / psi K0(S) decays at LEP (1998)
OPAL Collaboration, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
Production of f(0)(980), f(2)(1270) and phi(1020) in hadronic Z0 decay (1998)
OPAL Collaboration, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
Search for the B(c) meson in hadronic Z0 decays (1998)
OPAL Collaboration, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
Search for scalar top and scalar bottom quarks at S**(1/2) = 183-GeV at LEP (1998)
OPAL Collaboration, Ackerstaff, K, Alexander, G, Allison, J, Altekamp, N, Anderson, K J, ...
Ackerstaff, K, Alexander, Gideon, Allison, J, Altekamp, N, Anderson, K J, Anderson, S, ...
Photonic events with large missing energy have been observed in e+e- collisions at centre-of-mass energies of 130, 136, 161 and 172 GeV using the OPAL detector at LEP. Results are presented based on...