Showing 2004 · hep-exShow all

14 papers · 2 filters

hep-ex2004★ 12 cited

A Search for Anomalous Heavy-Flavor Quark Production in Association with W Bosons

D0 Collaboration, V. M. Abazov

We present a search for anomalous production of heavy-flavor quark jets in association with a W boson at the Fermilab Tevatron ppbar Collider. This search is conducted through an e…

hep-ex2004★ 24 cited

A Measurement of the Ratio of Inclusive Cross Sections pp->Z+b-jet/pp->Z+jet at sqrt(s) = 1.96-TeV

D0 Collaboration, V. M. Abazov

Using the data collected with the DZero detector at sqrt(s)=1.96-TeV, for integrated luminosities of about 180 pb^{-1}, we have measured the ratio of inclusive cross sections for p…

hep-ex2004★ 32 cited

Measurement of the WW production cross section in p anti-p collisions at s**(1/2) = 1.96 TeV

D0 Collaboration, V. M. Abazov

We present a measurement of the W boson pair-production cross section in p anti-p collisions at a center-of-mass energy of sqrt{s}=1.96 TeV. The data, collected with the Run II DO…

hep-ex2004★ 26 cited

A search for W bb and W Higgs production in ppbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

We present a search for W b \bar{b} production in p \bar{p} collisions at sqrt{s}=1.96 TeV in events containing one electron, an imbalance in transverse momentum, and two b-tagged…

hep-ex2004★ 21 cited

Measurement of the Lambda^0_b lifetime in the decay Lambda^0_b -> J/psi Lambda^0 with the D0 Detector

D0 Collaboration, V. M. Abazov

We present measurements of the Lambda^0_b lifetime in the exclusive decay channel Lambda^0_{b}->J/psi Lambda^0, with J/psi to mu+ mu- and Lambda^0 to p pi-, the B^0 lifetime in the…

hep-ex2004★ 68 cited

A Search for the Flavor-Changing Neutral Current Decay B0_s -> mu^+mu^- in pp(bar) Collisions at \sqrt{s} = 1.96 TeV with the D0 Detector

D0 Collaboration, V. M. Abazov

We present the results of a search for the flavor-changing neutral current decay B0_s -> mu+ mu- using a data set with integrated luminosity of 240 pb^{-1} of pp(bar) collisions at…

hep-ex2004★ 94 cited

Measurement of Dijet Azimuthal Decorrelations at Central Rapidities in pp-bar Collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

Correlations in the azimuthal angle between the two largest transverse momentum jets have been measured using the D0 detector in pp-bar collisions at a center-of-mass energy sqrt(s…

hep-ex2004★ 18 cited

Measurement of the B^0_s lifetime in the exclusive decay channel B^0_s -> J/psi phi

D0 Collaboration, V. M. Abazov

Using the exclusive decay B^0_s -> J/psi (mu+mu-) phi(K+K-), we report the most precise single measurement of the B^0_s lifetime. The data sample corresponds to an integrated lumin…

hep-ex2004★ 29 cited

Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events at D0

D0 Collaboration, V. M. Abazov

We report the results of a search for supersymmetry (SUSY) with gauge-mediated breaking in the missing transverse energy distribution of inclusive diphoton events using 263 pb$^{-1…

hep-ex2004

Production of Eta Mesons in Proton-Proton Collisions Close to Threshold

R. Czyzykiewicz, H. -H. Adam, A. Budzanowski +22

A brief experimental overview on the close-to-threshold eta meson production in proton-proton interactions is presented and the available observables in measurements with unpolariz…

hep-ex2004★ 549 cited

Observation and Properties of the X(3872) Decaying to J/psi pi+ pi- in p-p(bar) Collisions at sqrt(s) = 1.96 TeV

D0 Collaboration, V. M. Abazov

We report the observation of the X(3872) in the J/psi pi+pi- channel, with J/psi decaying to mu+mu- in p-p(bar) collisions at sqrt(s) = 1.96 TeV. Using approximately 230 pb^-1 of d…

hep-ex2004★ 68 cited

Search for Doubly-charged Higgs Boson Pair Production in the Decay to mu+mu+mu-mu- in p pbar Collisions at s**1/2=1.96 TeV

D0 Collaboration, V. M. Abazov

A search for pair production of doubly-charged Higgs bosons in the process p pbar to H++H-- to mu+mu+mu-mu- is performed with the D0 Run II detector at the Fermilab Tevatron. The a…

hep-ex2004★ 50 cited

Search for single top production via FCNC at LEP at sqrt(s) = 189-208 GeV

The DELPHI Collaboration, J. Abdallah

A search for single top production (e+e- -> t cbar) via Flavour Changing Neutral Currents (FCNC) was performed using the data taken by the DELPHI detector at LEP2. The data analyse…

hep-ex2004★ 31 cited

Measurement of the Lambda_b^0 Decay Form Factor

The DELPHI Collaboration, J. Abdallah

The form factor of Lambda_b^0 baryons is estimated using 3.46 10^6 hadronic Z decays collected by the DELPHI experiment between 1992 and 1995. Charmed Lambda_c^+ baryons fully reco…