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19912026
Showing 2007 · hep-exShow all

35 papers · 2 filters

hep-ex2007★ 41 cited

Model-independent measurement of the W boson helicity in top quark decays

D0 Collaboration, V. M. Abazov

We present the first model-independent measurement of the helicity of bosons produced in top quark decays, based on a 1 fb sample of candidate events in the d…

hep-ex2007★ 239 cited

First measurement of the forward-backward charge asymmetry in top quark pair production

D0 Collaboration, V. M. Abazov

We present the first measurement of the integrated forward-backward charge asymmetry in top-antitop quark pair (ttbar) production in proton-antiproton collisions in the lepton plus…

hep-ex2007★ 37 cited

Search for ZZ and Zγ^* production in p-barp collisions at sqrt(s) = 1.96 TeV and limits on anomalous ZZZ and ZZγ^* couplings

D0 Collaboration, V. Abazov

We present a study of four muon, four electron, and two muon two electron events using 1 fb^(-1) of data collected with the D0 detector at the Fermilab Tevatron p-barp Collider at…

hep-ex2007★ 18 cited

A combined search for the standard model Higgs boson at sqrt{s}=1.96 TeV

D0 Collaboration, V. M. Abazov

We present new results of the search for WH to lepton neutrino b b production in ppbar collisions at a center of mass energy of sqrt{s}=1.96 TeV, based on a dataset with integrated…

hep-ex2007★ 29 cited

Beam spin asymmetry in deep and exclusive pi0 electroproduction

CLAS Collaboration, R. De Masi

The beam spin asymmetry (BSA) in the exclusive reaction ep->ep pi0 was measured with the CEBAF 5.77 GeV polarized electron beam and Large Acceptance Spectrometer(CLAS). The xB, Q2,…

hep-ex2007★ 125 cited

Search for squarks and gluinos in events with jets and missing transverse energy using 2.1 fb-1 of ppbar collision data at sqrt(s)=1.96 TeV

D0 Collaboration, V. Abazov

A data sample corresponding to an integrated luminosity of 2.1 fb-1 collected by the D0 detector at the Fermilab Tevatron Collider was analyzed to search for squarks and gluinos pr…

hep-ex2007★ 32 cited

Measurement of the B0_s semileptonic branching ratio to an orbitally excited D_s** state, Br(B0_s -> Ds1(2536) mu nu)

D0 Collaboration, V. Abazov

In a data sample of approximately 1.3 fb-1 collected with the D0 detector between 2002 and 2006, the orbitally excited charm state D_s1(2536) has been observed with a measured mass…

hep-ex2007★ 126 cited

Measurement of the shape of the boson transverse momentum distribution in ppbar -> Z/gamma* -> ee+X events produced at sqrt{s}=1.96 TeV

D0 Collaboration, V. Abazov

We present a measurement of the shape of the Z/gamma* boson transverse momentum (qT) distribution in ppbar -> Z/gamma* -> ee+X events at a center-of-mass energy of 1.96 TeV using 0…

hep-ex2007★ 76 cited

Observation and properties of the orbitally excited B_{s2}* Meson

D0 Collaboration, V. Abazov et al

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…

hep-ex2007★ 194 cited

Deeply Virtual Compton Scattering Beam-Spin Asymmetries

F. X. Girod, R. A. Niyazov et al

The beam spin asymmetries in the hard exclusive electroproduction of photons on the proton (ep -> epg) were measured over a wide kinematic range and with high statistical accuracy.…

hep-ex2007★ 17 cited

Search for sneutrino particles in e + mu final states in ppbar collisions at sqrt{s} =1.96 TeV

D0 Collaboration, V. M Abazov

We report a search for R-parity violating production and decay of sneutrino particles in the e+mu final state with 1.04+-0.06 fb-1 of data collected with the D0 detector at the Fer…

hep-ex2007★ 34 cited

Search for Supersymmetry in Di-Photon Final States at sqrt{s} = 1.96 TeV

V. M. Abazov

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…

hep-ex2007★ 25 cited

Search for Randall-Sundrum gravitons with 1 fb-1 of data from ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. Abazov

Using 1 fb-1 of data from ppbar collisions at sqrt(s)=1.96 TeV at the Fermilab Tevatron collider collected by the D0 detector, we search for decays of Kaluza-Klein excitations of t…

hep-ex2007★ 67 cited

Search for W' bosons decaying to an electron and a neutrino with the D0 detector

D0 Collaboration, V. Abazov

This Letter describes the search for a new heavy charged gauge boson W' decaying into an electron and a neutrino. The data were collected with the D0 detector at the Fermilab Tevat…

hep-ex2007★ 78 cited

Measurement of the muon charge asymmetry from W boson decays

D0 Collaboration, V. M. Abazov

We present a measurement of the muon charge asymmetry from W boson decays using 0.3 fb^{-1} of data collected at \sqrt{s}=1.96 GeV between 2002 and 2004 with the D0 detector at the…

hep-ex2007★ 22 cited

Measurement of the p\bar{p}\to WZ + X cross section at \sqrt{s}=1.96 TeV and limits on WWZ trilinear gauge couplings

D0 Collaboration, V. Abazov

We present measurements of the process at TeV, where and are electron…

hep-ex2007★ 24 cited

Search for flavor-changing-neutral-current D meson decays

D0 Collaboration, V. Abazov

We study the flavor-changing-neutral-current process c to u mu+ mu- using 1.3 fb^-1 of p p bar collisions at sqrt(s) = 1.96 TeV recorded by the D0 detector operating at the Fermila…

hep-ex2007★ 33 cited

Search for Bs --> mu+ mu- at D0

D0 Collaboration, V. Abazov

We report results from a search for the decay Bs --> mu+ mu- using 1.3/fb of pbar p collisions at sqrt(s)= 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron Collider…

hep-ex2007★ 31 cited

Measurement of the ttbar production cross section in ppbar collisions using dilepton events

D0 Collaboration, V. Abazov

We present a measurement of the ttbar pair production cross section in ppbar collisions at sqrt(s) = 1.96 TeV utilizing approximately 425 pb-1 of data collected with the D0 detecto…

hep-ex2007★ 19 cited

Search for the lightest scalar top quark in events with two leptons in p-pbar collisions at sqrt(s) = 1.96 TeV

D0 Collaboration, V. Abazov

Data collected by the D0 detector at a p-pbar center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider have been used to search for pair production of the lightest super…

hep-ex2007★ 112 cited

Direct observation of the strange b baryon Xi_b^{-}

D0 Collaboration, V. Abazov

We report the first direct observation of the strange b baryon Xi_b^{-}. We reconstruct the decay Xi_b^{-} to J/psi Xi^{-}, with J/psi to dimuons and Xi^{-} to Lambda pion, in ppba…

hep-ex2007★ 86 cited

photoproduction on the proton for photon energies from 0.675 to 2.875 GeV

M. Dugger, B. G. Ritchie, J. P. Ball +7

Differential cross sections for the reaction have been measured with the CEBAF Large Acceptance Spectrometer (CLAS) and a tagged photon beam with energies from 0.675…

hep-ex2007★ 57 cited

Observation and Properties of L=1 B_1 and B_2* Mesons

D0 Collaboration, V. Abazov

Excited B mesons B_1 and B_2* are observed directly for the first time as two separate states in fully reconstructed decays to B+(*) pi-. The mass of B_1 is measured to be (5720.6…

hep-ex2007★ 24 cited

Zgamma production and limits on anomalous ZZgamma and Zgammagamma couplings in ppbar collisions at sqrt(s) = 1.96 TeV

D0 Collaboration, V. Abazov

We present a study of eegamma and mumugamma events using 1109 (1009) pb-1 of data in the electron (muon) channel, respectively. These data were collected with the D0 detector at th…