Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre, ...
We present measurements of the process p[overline p]-->WZ+X-->[script-l][prime]nu[script-l][prime][script-l][overline [script-l]] at sqrt(s)=1.96 TeV, where [script-l] and [script-l][prime] are...
Measurement of the branching fraction Br(B0(s) → Ds(*) Ds(*))}. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We report a study of the decay BDD using a data sample corresponding to 1.3 fb-1 of integrated luminosity collected by the D0 experiment in 2002–2006 during run II of the Fermilab Tevatron...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We present a measurement of the top quark pair production cross section in p[overline p] collisions at sqrt(s)=1.96 TeV utilizing 425 pb-1 of data collected with the D0 detector at the Fermilab...
Search for a Higgs boson produced in association with a Z boson in p p collisions}. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We describe a search for the Standard Model Higgs boson with a mass of 105 GeV/c2 to 145 GeV/c2 in data corresponding to an integrated luminosity of approximately 450 pb−1 collected with the DØ...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We search for the production of single top quarks via flavor-changing-neutral-current couplings of a gluon to the top quark and a charm (c) or up (u) quark. We analyze 230 pb-1 of lepton+jets data...
Search for Bs → μ+ μ- at D0}. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We report results from a search for the decay Bs0-->µ+µ- using 1.3 fb-1 of p[overline p] collisions at sqrt(s)=1.96 TeV collected by the D0 experiment at the Fermilab Tevatron Collider. We find two...
Measurement of the Lambda_b^0 lifetime using semileptonic decays. (2007)
Bertram, I. A., Borissov, Guennadi, Fox, H., Ratoff, Peter N.
We report a measurement of the lifetime using a sample corresponding to 1.3 fb-1 of data collected by the D0 experiment in 2002–2006 during run II of the Fermilab Tevatron collider. The baryon is...
Measurement of the top quark mass in the dilepton channel. (2007)
Sopczak, A., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter
We present a measurement of the top quark mass in the dilepton channel based on approximately 370 pb−1 of data collected by the DØ experiment during Run II of the Fermilab Tevatron collider. We...
Measurement of the Λb lifetime in the exclusive decay Λb → J/ψ Λ. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We have measured the b lifetime using the exclusive decay bJ/, based on 1.2 fb-1 of data collected with the D0 detector during 2002–2006. From 171 reconstructed b decays, where the J/ and are...
Measurement of the t t production cross-section in p p collisions using dilepton events}. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We present a measurement of the t[overline t] pair production cross section in p[overline p] collisions at sqrt(s)=1.96 TeV utilizing approximately 425 pb-1 of data collected with the D0 detector. We...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We present a study of eeγ and μμγ events using 1109 (1009) pb−1 of data in the electron (muon) channel, respectively. These data were collected with the DØ detector at the Fermilab Tevatron...
Search for stopped gluinos from pp collisions at √s = 1.96-TeV}. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
Long-lived, heavy particles are predicted in a number of models beyond the standard model of particle physics. We present the first direct search for such particles' decays, occurring up to 100 h...
Abazov, V.M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We combine the D0 measurement of the width difference between the light and heavy Bs0 mass eigenstates and of the CP-violating mixing phase determined from the time-dependent angular distributions in...
Search for third-generation leptoquarks in p p collisions at √s = 1.96-TeV}. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We report on a search for charge-1/3 third-generation leptoquarks (LQ) produced in p collisions at =1.96 TeV using the D0 detector at Fermilab. Third-generation leptoquarks are assumed to be produced...
Direct Observation of the Strange b Baryon Xi(b)-. (2007)
Borissov, Guennadi, Bertram, I. A., Fox, H., Ratoff, Peter N.
We report the first direct observation of the strange b baryon (). We reconstruct the decay J/-, with J/µ+µ-, and --p-- in p collisions at =1.96 TeV. Using 1.3 fb-1 of data collected by the D0...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We present a measurement of the shape of the boson rapidity distribution for p[overline p]-->Z/gamma*-->e+e-+X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with...
Measurement of the top quark mass in the lepton + jets channel using the ideogram method. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
A measurement of the top quark mass using events with one charged lepton, missing transverse energy, and jets in the final state, collected by the D0 detector from p[overline p] collisions at...
Measurement of the charge asymmetry in semileptonic B-s(0) decays. (2007)
Ratoff, Peter N., Bertram, I., Borissov, Guennadi, Fox, H.
We have performed the first direct measurement of the time-integrated flavor untagged charge asymmetry in semileptonic B decays A by comparing the decay rate of Bµ+DX, where D- and K+K-, with the...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We report on a search for second generation leptoquarks (LQ2) which decay into a muon plus quark in collisions at a center-of-mass energy of in the D0 detector using an integrated luminosity of about...
Lifetime difference and CP-violating phase in the B0s system}. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
From an analysis of the decay BJ/, we obtain the width difference between the light and heavy mass eigenstates (L-H)=0.17±0.09(stat)±0.02(syst) ps-1 and the CP-violating phase...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre, ...
A search for the pair production of scalar top quarks, , has been performed in 360 pb−1 of data from collisions at a center-of-mass energy of 1.96 TeV, collected by the DØ detector at the Fermilab...
Evidence for production of single top quarks and first direct measurement of |V(tb)|. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
The D0 Collaboration presents first evidence for the production of single top quarks at the Fermilab Tevatron p collider. Using a 0.9 fb-1 dataset, we apply a multivariate analysis to separate signal...
Measurement of the W boson helicity in top quark decay at D0. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We present a measurement of the fraction f+ of right-handed W bosons produced in top quark decays, based on a candidate sample of t[overline t] events in the [script-l]+jets and dilepton decay...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We present the first experimental discrimination between the 2e/3 and 4e/3 top quark electric charge scenarios, using top quark pairs (t) produced in p collisions at =1.96 TeV by the Fermilab...
Multivariate searches for single top quark production with the D0 detector. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We present a search for electroweak production of single top quarks in the s-channel (p[overline p]-->t[overline b]+X) and t-channel (p[overline p]-->tq[overline b]+X) modes. We have analyzed 230...
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre, ...
A measurement of the top quark pair production cross section in proton antiproton collisions at an interaction energy of sqrt(s)=1.96 TeV is presented. This analysis uses 405±25 pb-1 of data...
Search for techniparticles in e + jets events at D0. (2007)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
We search for the technicolor process pT/TWT in events containing one electron and two jets, in data corresponding to an integrated luminosity of 390 pb-1, recorded by the D0 experiment at the...
Direct limits on the B0(s) oscillation frequency. (2006)
Borissov, Guennadi, Bertram, I. A., Fox, H., Ratoff, Peter N.
We report results of a study of the B oscillation frequency using a large sample of B semileptonic decays corresponding to approximately 1 fb-1 of integrated luminosity collected by the D0 experiment...
Precision Electroweak Measurements on the Z resonance. (2006)
Jones, Roger W. L., Borissov, Guennadi, Grunewald, M. W., Ratoff, Peter N.
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...
Search for excited muons in p p collisions at √s = 1.96- TeV}. (2006)
Abazov, V. M., Bertram, Iain, Borissov, Guennadi, Fox, Harald, Ratoff, Peter, Sopczak, Andre
Measurement of the ratio of B+ and B0 meson lifetimes. (2005)
Ratoff, Peter N., Bertram, I., Borissov, Guennadi, Fox, H.
The ratio of the B+ and B0 meson lifetimes was measured using data collected in 2002–2004 by the D0 experiment in Run II of the Fermilab Tevatron Collider. These mesons were reconstructed in...
Borissov, Guennadi, Bertram, I. A., Fox, H., Ratoff, Peter N.
We present the results of a search for the flavor-changing neutral current decay Bµ+µ- using a data set with integrated luminosity of 240 pb-1 of p collisions at =1.96 TeV collected with the D0...
Searches for neutral Higgs bosons in extended models. (2004)
DELPHI Collaboration , The, Borissov, Guennadi, Sopczak, Andre
Searches for neutral Higgs bosons produced at LEP in association with Z bosons, in pairs and in the Yukawa process are presented in this paper. Higgs boson decays into b quarks, leptons, or other...
Bertram, I. A., Borissov, Guennadi, Ratoff, Peter N., Sopczak, Andre, Davies, B., ...
We report the observation of the X(3872) in the J/ψπ+π- channel, with J/ψ decaying to μ+μ-, in pp̅ collisions at sqrt[s]=1.96 TeV. Using approximately 230 pb-1 of data collected with...
Bertram, I. A., Borissov, Guennadi, Ratoff, Peter N., Sopczak, Andre, Davies, B., ...
A search for pair production of doubly charged Higgs bosons in the process pp̅ →H++H--→μ+μ+μ-μ- is performed with the D0 run II detector at the Fermilab Tevatron. The analysis is based on a...
Search for the standard model Higgs boson at LEP in the year 2000. (2001)
Borissov, Guennadi, Abreu , P., Adam , W., Adye , T.
Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 209 GeV corresponding...