Measurement of the electron charge asymmetry in ppbar->W+X->enu+X events at sqrt{s}=1.96 TeV (2008)
We present a measurement of the electron charge asymmetry in ppbar->W+X->enu+X events at a center of mass energy of 1.96 TeV using 0.75 fb-1 of data collected with the D0 detector at the Fermilab...
Measurement of the ratio of the pp → W+c-jet cross section to the inclusive (2008)
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present a measurement of the fraction of inclusive W+jets events produced with net charm quantum number ±1, denoted W+c-jet, in pp collisions at √s = 1.96 TeV using approximately 1 fb-1 of data...
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present a search for the pair production of scalar top quarks, t, using 995 pb−1 of data collected in pp collisions with the DØ detector at the Fermilab Tevatron Collider at √s = 1.96 TeV....
Search for W′ Boson Resonances Decaying to a Top Quark and a Bottom Quark (2008)
Abazov, V. M., Snow, Gregory, Bloom, Kenneth A.
We search for the production of a heavy W′ gauge boson that decays to third generation quarks in 0.9 fb-1 of pp collisions at √s = 1.96 TeV, collected with the D0 detector at the Fermilab...
Study of Direct CP Violation in B± → J/ψK±(π±) Decays (2008)
Abazov, V. M., Snow, Gregory, Bloom, Kenneth A.
We present a search for direct CP violation in B±→J/ψK±(π±) decays. The event sample is selected from 2.8 fb-1 of pp collisions recorded by D0 experiment in run II of the Fermilab Tevatron...
Measurement of the tt Production Cross Section in pp Collisions at √s = 1.96 TeV (2008)
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We measure the tt production cross section in pp collisions at √s = 1.96 TeV in the lepton + jets channel. Two complementary methods discriminate between signal and background: b tagging and a...
Abazov, V. M., Snow, Gregory, Bloom, Kenneth A.
We present the first simultaneous measurement of the ratio of branching fractions, R = B(t → Wb)/B(t→Wq), with q being a d, s, or b quark, and the top-quark pair production cross section σtt in...
Search for excited electrons in pp collisions at √s = 1.96 TeV (2008)
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present the results of a search for the production of an excited state of the electron, e*, in protonantiproton collisions at √s = 1.96 TeV. The data were collected with the D0 experiment at the...
A combined search for the standard model Higgs boson at √s = 1.96 TeV (2008)
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present new results of the search for WH → ℓνbb production in pp collisions at a center-of-mass energy of √s = 1.96 TeV, based on a dataset with integrated luminosity of 0.44 fb−1. We...
Measurement of the Forward-Backward Charge Asymmetry in Top-Quark Pair Production (2008)
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present the first measurement of the integrated forward-backward charge asymmetry in top-quark- top-antiquark pair (tt) production in proton-antiproton (pp) collisions in the lepton + jets final...
Abazov, V. M., Snow, Gregory, Bloom, Kenneth A.
We present a study of μμμμ, eeee, and μμee events using 1 fb-1 of data collected with the D0 detector at the Fermilab Tevatron pp Collider at √s = 1.96 TeV. Requiring the lepton pair masses...
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present a measurement of the shape of the Z/γ* boson transverse momentum (qT) distribution in pp → Z/γ* → e+e- + X events at a center-of-mass energy of 1.96 TeVusing 0.98 fb-1 of data...
Search for Flavor-Changing-Neutral-Current D Meson Decays (2008)
Abazov, V. M., Snow, Gregory, Bloom, Kenneth A.
We study the flavor-changing-neutral-current process c → uμ+μ- using 1.3 fb-1 of pp collisions at √s = 1.96 TeV recorded by the D0 detector operating at the Fermilab Tevatron Collider. We see...
Search for Randall-Sundrum Gravitons with1 fb-1 of Data from pp Collisions at √s = 1.96 TeV (2008)
Abazov, V. M., Snow, Gregory, Bloom, Kenneth A.
We search for decays of Kaluza-Klein excitations of the graviton in the Randall-Sundrum model of extra dimensions to e+e- and γγ in 1 fb-1 of pp collisions at √s = 1.96 TeV collected by the D0...
Observation and Properties of the Orbitally Excited B*s2 Meson (2008)
Abazov, V. M., Snow, Gregory, Bloom, Kenneth A.
We report the direct observation of the excited L = 1 state B*s2 in fully reconstructed decays to B+K-. The mass of the B*s2 meson is measured to be 5839.6 ± 1.1(stat) ± 0.7(syst) MeV/c2, and its...
Model-Independent Measurement of the W-Boson Helicity in Top-Quark Decays at D0 (2008)
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present the first model-independent measurement of the helicity of W bosons produced in top quark decays, based on a 1 fb-1 sample of candidate tt events in the dilepton and lepton plus jets...
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
A data sample corresponding to an integrated luminosity of 2.1 fb-1 collected by the DØ detector at the Fermilab Tevatron Collider was analyzed to search for squarks and gluinos produced in pp...
Search for supersymmetry in di-photon final states at √s = 1.96 TeV (2008)
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We report results of a search for supersymmetry (SUSY) with gauge-mediated symmetry breaking in di-photon events collected by the D0 experiment at the Fermilab Tevatron Collider in 2002-2006. In 1.1...
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
We present a study of events with Z bosons and associated jets produced at the Fermilab Tevatron collider in pp collisions at a center of mass energy of 1.96 TeV. The data sample consists of nearly...
Abazov, V. M., Bloom, Kenneth A., Snow, Gregory
Data collected by the D0 detector at a pp center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider have been used to search for pair production of the lightest supersymmetric partner of...
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...
Abazov, V.M., Abbott, B., Abolins, M., Acharya, B.S., Adams, M., Adams, T., ...
A measurement of the top quark pair production cross section in proton anti-proton collisions at an interaction energy of sqrt(s)=1.96 TeV is presented. This analysis uses 405 pb-1 of data collected...
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...
Combination of CDF and D0 results on the W boson mass and width (2007)
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., S. Acharya, B., ...
The results based on 199295 data (Run 1) from the CDF and D0 experiments on the measurements of the W boson mass and width are presented, along with the combined results. We report a Tevatron...
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...
Abazov, V.M., Abbott, B., Abolins, M., Acharya, B.S., Adams, M., Aguilo, E., ...
We present a measurement of the shape of the boson rapidity distribution for p\bar{p}-> Z/gamma*-> e+e- +X events at a center-of-mass energy of 1.96 TeV. The measurement is made for events with...
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...
Evidence for production of single top quarks and first direct measurement of $|V_{tb}|$ (2007)
Abazov, V.M., Abbott, B., Abolins, M., Acharya, B.S., Adams, M., Adams, T., ...
The D0 Collaboration presents first evidence for the production of single top quarks at the Fermilab Tevatron ppbar collider. Using a 0.9 fb^-1 dataset, we apply a multivariate analysis to separate...
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...
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...
Abazov, V.M., Abbott, B., Abolins, M., Acharya, B.S., Adams, M., Adams, T., ...
We report on a search for second generation leptoquarks LQ_2 which decay into a muon plus quark in p\bar{p} collisions at a center-of-mass energy of sqrt{s} = 1.96 TeV in the D0 detector using an...
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...
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
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
The inclusive cross section for production of isolated photons has been measured in \pbarp collisions at $\sqrt{s} = 630$ GeV with the \D0 detector at the Fermilab Tevatron Collider. The photons span...
Search for new particles in the two-jet decay channel with the D0 detector (2005)
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
We present the results of a search for the production of new particles decaying into two jets in pbarp collisions at sqrt{s} = 1.8 TeV, using the DZero 1992-1995 data set corresponding to 109 pb^-1....
Search for narrow $t\bar t$ resonances in $p\barp$ collisions at $\sqrt s$ = 1.8 TeV (2005)
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
A search for narrow resonances that decay into t-tbar pairs has been performed using 130 pb^{-1} of data in the lepton+jets channel collected in p-pbar collisions at \sqrt{s} = 1.8 TeV. There is no...
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
Using 85.2 +/- 3.6 pb^-1 of p-pbar collisions collected at sqrt(s)=1.8 TeV with the D0 detector at Fermilab's Tevatron Collider, we present the results of a search for direct pair production of...
A precision measurement of the mass of the top quark (2005)
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
The Standard Model of particle physics contains about two dozen parameters - such as particle masses - whose origins are still unknown and cannot be predicted, but whose values are constrained...
Observation of diffractively produced W and Z bosons in PP¯ collisions at sqrt[s]=1.8 TeV. (2003)
DØ Collaboration, ., Abazov, V. M.
Using the DØ detector, we have observed events produced in collisions that contain W or Z bosons in conjunction with very little energy deposition (“rapidity gaps”) in large forward regions of...
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
Using the D0 detector, we have observed events produced in pbar-p collisions that contain W or Z bosons in conjunction with very little energy deposition (``rapidity gaps'') in large forward regions...
Search for large extra dimensions in the monojet + $\E_T$ channel with the D0 detector (2003)
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
We present a search for large extra dimensions (ED) in p-pbar collisions at a center-of-mass energy of 1.8 TeV using data collected by the D0 detector at the Fermilab Tevatron in 1994-1996. Data...
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
We present data on multiple production of jets with transverse energies near 20 GeV in p-pbar collisions at Root(s) = 1.8 TeV. QCD calculations in the parton-shower approximation of PYTHIA and HERWIG...
Multiple jet production at low transverse energies in PP¯ collisions at sqrt[s]=1.8 TeV. (2003)
DØ Collaboration, ., Abazov, V. M.
We present data on multiple production of jets with transverse energies near 20 GeV in pp̅ collisions at sqrt[s]=1.8 TeV. QCD calculations in the parton-shower approximation of pythia and herwig and...
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
We describe a search for evidence of minimal supergravity (mSUGRA) in 92.7 pb^(-1) of data collected with the D{\O}detector at the Fermilab Tevatron ppbar collider at center of mass energy of 1.8...
tt¯ production cross section in pp¯ collisions at sqrt[s]=1.8 TeV. (2003)
DØ Collaboration, ., Abazov, V. M., Bertram, I. A.
Results are presented on a measurement of the tt¯ pair production cross section in pp¯ collisions at sqrt[s]=1.8 TeV from nine independent decay channels. The data were collected by the DØ...
Search for R-parity violating supersymmetry in two-muon and four-jet topologies (2002)
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
We present results of a search for R-parity-violating decay of the neutralino chi_1^0, taken to be the Lightest Supersymmetric Particle. It is assumed that this decay proceeds through one of the...
Abazov, V.M., Abbott, B., Abdesselam, A., Abolins, M., Abramov, V., Acharya, B.S., ...
We present the results of a search for leptoquark (LQ) pairs in (85.2 +- 3.7) pb^{-1} of p anti-p collider data collected by the D0 experiment at the Fermilab Tevatron. We observe no evidence for...