output
19922026
Showing 2004 · hep-exShow all

59 papers · 2 filters

hep-ex2004★ 22 cited

Limit on the B0->rho0rho0 Branching Fraction and Implications for the CKM Angle alpha

The BABAR Collaboration, B. Aubert et al

We search for the decay B0 -> rho0 rho0 in a data sample of about 227 million Upsilon(4S)-> BBbar decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- coll…

hep-ex2004★ 44 cited

Measurement of Branching Fractions and Charge Asymmetries for Exclusive B Decays to Charmonium

B. Aubert, BABAR Collaboration

We report measurements of branching fractions and charge asymmetries of exclusive decays of neutral and charged B mesons into two-body final states containing a charmonium state an…

hep-ex2004★ 100 cited

Search for a Charged Partner of the X(3872) in the B Meson Decay B --> X- K, X- --> J/psi pi- pi0

B. Aubert, BaBar Collaboration

We search for a charged partner of the X(3872) in the decay B --> X- K, X- --> J/psi pi- pi0, using 234 million BBbar events collected at the Y(4S) resonance with the BaBar detecto…

hep-ex2004★ 42 cited

Branching Fractions and CP Asymmetries in B0 -> pi0pi0, B+ -> pi+pi0 and B+ -> K+pi0 Decays and Isospin Analysis of the B -> pipi System

The BABAR Collaboration, B. Aubert

Based on a sample of 227 million BBbar pairs collected by the BaBar detector at the PEP-II asymmetric-energy B Factory at SLAC, we measure the branching fraction B(B0 -> pi0pi0) =…

hep-ex2004★ 6 cited

Measurement of Branching Fraction and Dalitz Distribution for B0->D(*)+/- K0 pi-/+ Decays

B. Aubert, BABAR Collaboration

We present measurements of the branching fractions for the three-body decays B0 -> D(*)-/+ K0 pi^+/-B0 -> D(*)-/+ K*+/- using a sample of approximate…

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★ 46 cited

A search for the decay

B. Aubert, BABAR Collaboration

We search for the rare flavor-changing neutral-current decay in a data sample of 82 fb collected with the {\sl BABAR} detector at the PEP-II B-factory.…

hep-ex2004★ 5 cited

Measurements of B meson decays to omega K* and omega rho

The BABAR Collaboration, B. Aubert

We describe searches for B meson decays to the charmless vector-vector final states omega K* and omega rho in 89 million B-Bbar pairs produced in e+e- annihilation at sqrt(s)=10.58…

hep-ex2004★ 16 cited

Measurement of the Ratio BR(B- --> D*0 K-)/BR(B- --> D*0 pi-) and of the CP Asymmetry of B- --> D*0(CP+) K- Decays

The BABAR Collaboration, B. Aubert

We study the decays B- --> D*0 pi- and B- --> D*0 K-, where the D*0 decays into D0 pi0, with the D0 reconstructed in the CP-even (CP+) eigenstates K- K+ and pi- pi+ and in the (non…

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

Study of Scalar Mesons at BES

Liaoyuan Dong

Partial wave analyses have been performed on BES data to study scalar mesons. There is evidence for the near the threshold and the pole position is i$(310\…

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★ 34 cited

Measurement of the B0 -> K2*(1430)0 gamma and B+ -> K2*(1430)+ gamma branching fractions

B. Aubert

We have investigated the exclusive, radiative B meson decays to K2*(1430) in 89* 10^6 BBbar events with the BaBar detector at the PEP-II storage ring. We measure the branching frac…

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★ 104 cited

Improved Measurement of CP Asymmetries in B0 -> (ccbar)K0(*) Decays

B. Aubert, BABAR Collaboration

We present results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 227 million Upsilon(4S) -> BBbar deca…

hep-ex2004★ 9 cited

Measurement of the Branching Fractions for Inclusive and Decays to Flavor-tagged , and

B. Aubert, BABAR collaboration

We report on the inclusive branching fractions of and of mesons decaying to , , , , , , ${Λ_c^+…

hep-ex2004★ 2 cited

Measurement of Neutral B Decay Branching Fractions to Kspi+pi- Final States

B. Aubert, BABAR Collaboration

Branching fraction measurements using B-meson decays to Kspi+pi- are presented. These measurements were obtained by analyzing a data sample of 88.9 million Y(4S) --> BB decays coll…

hep-ex2004★ 13 cited

Search for decays of B0 mesons into pairs of charged leptons: B0->e+e-, B0->mu+mu-, B0->e+-mu-+

The BABAR Collaboration, B. Aubert

We present a search for the decays B0->e+e-, B0->mu+mu-, and B0->e+- mu-+ in data collected at the Y(4S) resonance with the Babar detector at the SLAC B Factory. Using a data set o…

hep-ex2004★ 26 cited

Search for D0-D0bar Mixing Using Semileptonic Decay Modes

B. Aubert, BABAR Collaboration

Based on an 87-fb dataset collected by the Babar detector at the PEP-II asymmetric-energy -Factory, a search for -- mixing has been made using the sem…