Showing 2006 · hep-exShow all

52 papers · 2 filters

hep-ex2006★ 17 cited

Measurement of the Top Quark Mass in ppbar Collisions at sqrt(s) = 1.96 TeV using the Decay Length Technique

A. Abulencia et al.

We report the first measurement of the top quark mass using the decay length technique in ppbar collisions at a center-of-mass energy of 1.96 TeV. This technique uses the measured…

hep-ex2006★ 10 cited

Cross Section Measurements of High- Dilepton Final-State Processes Using a Global Fitting Method

M. Kruse

We present a new method for studying high- dilepton events (, , ) and simultaneously extracting the production cross sections o…

hep-ex2006★ 16 cited

Measurement of the ppbar to ttbar production cross section at sqrt(s)=1.96 TeV in the fully hadronic decay channel

D0 Collaboration, V. Abazov

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…

hep-ex2006★ 13 cited

Search for techniparticles in e +jets events at D0

D0 Collaboration, V. Abazov

We search for the technicolor process ppbar -> rho_T/omega_T ->W+pi_T in events containing one electron and two jets, in data corresponding to an integrated luminosity of 390 pb-1,…

hep-ex2006★ 25 cited

Search for Wprime Boson Decaying to Electron-Neutrino Pairs in pbarp Collisions at sqrt{s}=1.96 TeV

CDF Collaboration, A. Abulencia

We present the results of a search for Wprime boson decaying to electron-neutrino pairs in pbarp collisions at a center-of-mass energy of 1.96 TeV, using a data sample correspondin…

hep-ex2006★ 24 cited

Search for the pair production of scalar top quarks in the acoplanar charm jet topology in p pbar collisions at sqrt(s)=1.96 TeV

D0 Collaboration, V. M. Abazov

A search for the pair production of scalar top quarks, or stops, has been performed in 360 pb-1 of data from p pbar collisions at a center-of-mass energy of 1.96 TeV, collected by…

hep-ex2006★ 55 cited

Measurement of the ttbar production cross section in pbarp collisions at sqrt(s) = 1.96 TeV using secondary vertex b tagging

D0 Collaboration, V. Abazov

We report a new measurement of the ttbar production cross section in pbarp collisions at a center-of-mass energy of 1.96 TeV using events with one charged lepton (electron or muon)…

hep-ex2006★ 26 cited

Luminosity Measurement Method for LHC: The theoretical precision and the experimental challenges

M. W. Krasny, J. Chwastowski, K. Slowikowski

This is the first of the series of papers which present a precision method of the day-by-day monitoring of the absolute LHC luminosity. The method is based on the measurement of th…

hep-ex2006★ 8 cited

Study of Leading Hadrons in Gluon and Quark Fragmentation

The DELPHI Collaboration, J. Abdallah

The study of quark jets in e+e- reactions at LEP has demonstrated that the hadronisation process is reproduced well by the Lund string model. However, our understanding of gluon fr…

hep-ex2006★ 17 cited

Branching fraction measurement of B0 --> D(*)- pi+, B- --> D(*)0 pi- and isospin analysis of B --> D(*) pi decays

The BABAR Collaboration, B. Aubert

Using 65 million events collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center, we measure the colo…

hep-ex2006★ 60 cited

Measurement of the top quark mass in the lepton+jets final state with the matrix element method

D0 Collaboration, V. Abazov

We present a measurement of the top quark mass with the Matrix Element method in the lepton+jets final state. As the energy scale for calorimeter jets represents the dominant sourc…

hep-ex2006★ 24 cited

Measurement of the W boson helicity in top quark decay at D0

D0 Collaboration, V. M. Abazov

We present a measurement of the fraction f_+ of right-handed W bosons produced in top quark decays, based on a candidate sample of ttbar events in the l+jets and dilepton decay cha…

hep-ex2006★ 34 cited

Measurement of Bd mixing using opposite-side flavor tagging

D0 Collaboration, V. M. Abazov

We report on a measurement of the mixing frequency and the calibration of an opposite-side flavor tagger in the DØexperiment. Various properties associated with the qua…

hep-ex2006★ 47 cited

Measurement of the CP-violation parameter of B^0 mixing and decay with pp(bar) -> mu mu X data

D0 Collaboration, V. Abazov

We measure the dimuon charge asymmetry A in pp(bar) collisions at a center of mass energy sqrt{s} = 1960 GeV. The data was recorded with the D0 detector and corresponds to an integ…

hep-ex2006★ 26 cited

Search for V+A current in top quark decay in ppbar collisions at sqrt{s}=1.96 TeV

A. Abulencia et al.

We report an upper limit on the fraction of V+A current, , in top quark decays, using approximately 700 pb of collisions at =1.96 TeV acquired…

hep-ex2006★ 21 cited

Measurement of the B0 -> Lambda-bar p pi Branching Fraction and Study of the Decay Dynamics

The BABAR Collaboration, B. Aubert

We present a measurement of the B0 -> Lambda-bar p pi branching fraction performed using the BaBar detector at the PEP-II asymmetric energy e+e- collider. Based on a 232 million BB…

hep-ex2006★ 39 cited

Measurement of the ratios of the Z/G* + >= n jet production cross sections to the total inclusive Z/G* cross section in ppbar collisions at sqrt(s) = 1.96 TeV

D0 Collaboration, V. Abazov

We present a study of events with Z bosons and jets produced at the Fermilab Tevatron Collider in ppbar collisions at a center of mass energy of 1.96 TeV. The data sample consists…

hep-ex2006★ 47 cited

Measurement of the Pseudoscalar Decay Constant fDs Using Charm-Tagged Events in e+e- Collisions at \sqrt{s}=10.58GeV

The BABAR Collaboration, B. Aubert

Using 230.2 fb^(-1) of e+e- annihilation data collected with the BABAR detector at and near the peak of the Y(4S) resonance, 489 +/- 55 events containing the pure leptonic decay D_…

hep-ex2006★ 71 cited

Measurement of the q2 dependence of the Hadronic Form Factor in D0 --> K- e+ nu_e decays

The BABAR Collaboration, B. Aubert

We present a preliminary measurement of the q2 dependence of the D0 --> K- e+ nu_e decay rate. This rate is proportional to the hadronic form factor squared, specified by a single…

hep-ex2006★ 67 cited

Measurement of the Branching Fraction and Photon Energy Moments of B->X_s gamma and A_{cp}(B->X_(s+d) gamma)

The BaBar Collaboration, B. Aubert

The photon spectrum in B -> X_s gamma decay, where X_s is any strange hadronic state, is studied using a data sample of 88.5 million e+e- -> Upsilon(4S) -> BBbar decays collected b…

hep-ex2006★ 36 cited

Search for Neutral, Long-lived Particles Decaying into Two Muons in p-pbar Collisions at sqrt(s) = 1.96 TeV

D0 Collaboration, V. Abazov

We present a search for a neutral particle, pair-produced in p-pbar collisions at sqrt(s)=1.96 TeV, which decays into two muons and lives long enough to travel at least 5 cm before…

hep-ex2006★ 13 cited

Search for the Standard Model Higgs Boson in the ZH --> neutrino-neutrino-b-b channel

D0 Collaboration, V. Abazov

We report a search for the standard model (SM) Higgs boson based on data collected by the D0 experiment at the Fermilab Tevatron Collider, corresponding to an integrated luminosity…

hep-ex2006★ 29 cited

Search for W' boson production in the W'->tb decay channel

D0 Collaboration, V. Abazov

We present a search for the production of a new heavy gauge boson W' that decays to a top quark and a bottom quark. We have analyzed 230 pb^{-1} of data collected with the Dzero de…

hep-ex2006★ 38 cited

Measurement of the B -> pi l nu Branching Fraction and Determination of |Vub| with Tagged B Mesons

The BABAR Collaboration, B. Aubert

We report a measurement of the B -> pi l nu branching fraction based on 211 fb-1 of data collected with the BABAR detector. We use samples of B0 and B+ mesons tagged by a second B…