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19912026
Showing 2007 · hep-exShow all

71 papers · 2 filters

hep-ex2007★ 29 cited

A Measurement of the Branching Fractions of exclusive Bbar -> D(*)(pi)l-nubar Decays in Events with a Fully Reconstructed B Meson

The BABAR Collaboration, B. Aubert

We report a measurement of the branching fractions for Bbar -> D(*)(pi)l-nubar decays based on 341.1 fb-1 of data collected at the Upsilon(4S) resonance with the babar detector at…

hep-ex2007★ 10 cited

Time-dependent Dalitz plot analysis of B0 -> D-(+) K0 Pi+(-) decays

The BABAR Collaboration, B. Aubert

We present for the first time a measurement of the weak phase 2b+g obtained from a time-dependent Dalitz plot analysis of B^0 -> D-(+) K0 Pi+(-) decays. Using a sample of approxima…

hep-ex2007★ 49 cited

Measurement of D0-anti-D0 Mixing using the Ratio of Lifetimes for the Decays D0 --> K-pi+, K-K+, and pi-pi+

The BABAR Collaboration, B. Aubert

We present a measurement of - mixing parameters using the ratios of lifetimes extracted from a sample of mesons produced through the process $D^{*+}\to\D^0π^+…

hep-ex2007★ 17 cited

Study of B0 --> l+l'- decays (l,l' = e,mu)

The BaBar Collaboration, B. Aubert

We present a search for the decays B0 --> e+e-, B0 --> mu+ mu- and B0 --> e mu using data collected with the BABAR detector at the PEP-II e+e-collider at SLAC. Using a dataset corr…

hep-ex2007★ 26 cited

Measurement of the Decay B- --> D*0 e- nubar

The BABAR Collaboration, B. Aubert

Using 226 million BBbar events recorded on the Upsilon(4S) resonance with the BABAR detector at the SLAC e+e- PEPII storage rings, we reconstruct B- -> D*0 e- nubar decays using th…

hep-ex2007★ 12 cited

First Measurement of the Fraction of Top Quark Pair Production Through Gluon-Gluon Fusion

CDF Collaboration, T. Aaltonen

We present the first measurement of the fraction of top quark pair production through gluon-gluon fusion. We use 0.96/fb of s**(1/2)=1.96 TeV p-pbar collision data recorded with th…

hep-ex2007★ 96 cited

Measurement of Inclusive Jet Cross Sections in Z/g* (-> ee)+jets Production in ppbar Collisions at sqrt(s)=1.96 TeV

T. Aaltonen

Inclusive jet cross sections in Z/gamma^* events, with Z/gamma^* decaying into an electron-positron pair, are measured as a function of jet transverse momentum and jet multiplicity…

hep-ex2007★ 34 cited

Search for Lepton Flavor Violating Decays τ^\pm \to l^\pmω(l = e, μ)

The BABAR Collaboration, B. Aubert

We have searched for lepton flavor violating decays of a to a lighter-mass charged lepton and an vector mesonusing 384.1 of annihilation data collected w…

hep-ex2007★ 100 cited

Measurement of the B --> X_s gamma Branching Fraction and Photon Energy Spectrum using the Recoil Method

The BABAR Collaboration, B. Aubert

We present a measurement of the branching fraction and photon energy spectrum for the decay B --> X_s gamma using data from the BaBar experiment. The data sample corresponds to an…

hep-ex2007★ 38 cited

Dalitz Plot Analysis of the Decay B0(B0bar) --> K+/- pi-/+ pi0

The BABAR Collaboration, B. Aubert

We report a Dalitz-plot analysis of the charmless hadronic decays of neutral B mesons to K^+/- pi^-/+ pi^0. With a sample of (231.8+/-2.6) 10^6 Upsilon(4S) to B Bbar decays collect…

hep-ex2007★ 12 cited

Search for chargino-neutralino production in p-pbar collisions at 1.96 TeV with high pT leptons

CDF Collaboration, T. Aaltonen

We present a search for the associated production of charginos and neutralinos in p-pbar collisions at 1.96 TeV. The data were collected at the Collider Detector at Fermilab (CDF I…

hep-ex2007★ 167 cited

Observation of Y(3940) -> J/psi omega in B -> J/psi omega K at BABAR

The BABAR Collaboration, B. Aubert

We present a study of the decays using events obtained with the \babar detector at PEP-II. We observe , wit…

hep-ex2007★ 61 cited

A study of Bbar -> Xi_c Lambda_c^- and Bbar -> Lambda_c^+ Lambda_c^- Kbar decays at BABAR

The BABAR Collaboration, B. Aubert

We report measurements of B-meson decays into two- and three-body final states containing two charmed baryons using a sample of 230 million Y(4S) -> B Bbar decays. We find signific…

hep-ex2007★ 102 cited

A Study of Excited Charm-Strange Baryons with Evidence for new Baryons Ξ_c(3055)^+ and Ξ_c(3123)^+

The BABAR Collaboration, B. Aubert

We present a study of excited charm-strange baryon states produced in annihilations at or near a center-of-mass energy of , in a data sampl…

hep-ex2007★ 44 cited

Limits on the Production of Narrow t-tbar Resonances in p-pbar Collisions at sqrt(s)=1.96 TeV

CDF Collaboration, T. Aaltonen

We search for evidence of resonant top quark pair production in 955 pb-1 of p-pbar collisions at sqrt(s)=1.96 TeV recorded with the CDF II detector at the Fermilab Tevatron. For fu…

hep-ex2007

D0-D0 Mixing at BaBar

A. Seiden

The BaBar and Belle collaborations have recently found evidence for mixing within the D meson system. We present some of the mixing search techniques used by BaBar and their status…

hep-ex2007★ 217 cited

Measurements of e+e- -> K+K-eta, K+K-pi0 and KsK+pi- Cross Sections Using Initial State Radiation Events

BaBar Collaboration, B. Aubert

This paper reports measurements of processes: e+e- -> gamma KsK+pi-, e+e- -> gamma K+K-pi0, e+e- -> gamma phi eta, and e+e- -> gamma phi pi0. The initial state radiated photon allo…

hep-ex2007★ 100 cited

Observation of Orbitally Excited B_s Mesons

CDF Collaboration, T. Aaltonen

We report the first observation of two narrow resonances consistent with states of orbitally excited (L=1) B_s mesons using 1 fb^{-1} of ppbar collisions at sqrt{s} = 1.96 TeV coll…

hep-ex2007★ 16 cited

Observation of B^+ Meson Decays to a1(1260)^+ K^0 and B^0 to a1(1260)^- K^+

The BABAR Collaboration, B. Aubert

We present branching fraction measurements of the decays B^{+} -> a1(1260)^{+} K^{0} and B^{0} to a1(1260)^{-} K^{+} with a1(1260)^{+} -> pi^{-} pi^{+} pi^{+}. The data sample corr…

hep-ex2007★ 81 cited

Search for CP Violation in the Decays D0 --> K- K+ and D0 --> pi- pi+

The BaBar Collaboration, B. Aubert

We measure CP-violating asymmetries of neutral charmed mesons in the modes D0 --> K- K+ and D0 --> pi- pi+ with the highest precision to date by using D0 --> K- pi+ decays to corre…

hep-ex2007★ 146 cited

Study of e+e- --> Lambda anti-Lambda, Lambda anti-Sigma0, Sigma0 anti-Sigma0 using Initial State Radiation with BABAR

The BABAR Collaboration, B. Aubert

We study the e+e- --> Lambda anti-Lambda gamma, Lambda anti-Sigma0 gamma, Sigma0 anti-Sigma0 gamma processes using 230 fb-1 of integrated luminosity collected by the BABAR detector…

hep-ex2007★ 99 cited

Observation of the Semileptonic Decays B --> D* tau nubar and Evidence for B --> D tau nubar

The BABAR Collaboration, B. Aubert

We present measurements of the semileptonic decays B- --> D0 tau- nubar, B- --> D*0 tau- nubar, B0bar --> D+ tau- nubar, and B0bar --> D*+ tau- nubar, which are potentially sensiti…

hep-ex2007★ 42 cited

Improved Limits on the Lepton-Flavor Violating Decays tau- --> l-l+l-

The BABAR Collaboration, B. Aubert

A search for the neutrinoless, lepton-flavor violating decay of the tau lepton into three charged leptons has been performed using 376 fb^{-1} of data collected at an e^+e^- center…

hep-ex2007★ 75 cited

A search for B+ --> tau+ nu with Hadronic B tags

The BABAR Collaboration, B. Aubert

We present a search for the decay B^+ --> tau^+ nu using $383 \times 10^{6}}$ BBbar pairs collected at the Upsilon(4S) resonance with the BABAR detector at the SLAC PEP-II B Factor…