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Using a data sample of 89 million Y(4s)-->B0B0bar decays collected with the BaBar detector at the PEP-II asymmetric B Factory at SLAC, we measure the B0(B0bar)-->rho+rho- branching fraction as $(30\pm 4 stat \pm 5 syst) \times 10^{-6}$ and…

High Energy Physics - Experiment · Physics 2019-08-14 B. Aubert

We present preliminary results for the measurement of the branching fraction of the decay B+- -> chi_c0 K+- from a sample of 75 million BB pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The chi_c0…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert

We report a search for the rare decays B+ to D+ K0 and B+ to D+ K*0 in an event sample of approximately 465 million BBbar pairs collected with the BaBar detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We find no significant…

High Energy Physics - Experiment · Physics 2015-03-17 Xavier Prudent

We describe searches for decays of B mesons to the charmless final states eta' eta' K. The data consist of 228 million B Bbar pairs produced in e+ e- annihilation, collected with the BaBar detector at the Stanford Linear Accelerator Center.…

High Energy Physics - Experiment · Physics 2010-03-19 The BaBar Collaboration , B. Aubert

With a sample of about 227 million BB pairs recorded with the BABAR detector we perform a full angular analysis of the decay B0->phi K*0(892). Ten measurements include polarization, phases, and five CP asymmetries. We also observe the decay…

High Energy Physics - Experiment · Physics 2017-08-23 Andrei Gritsan

We present branching fraction and CP asymmetry results for a variety of charmless B decays based on up to 124 fb^-1 collected by the BABAR experiment running near the Upsilon(4S) resonance at the PEP-II e+e- B-factory.

High Energy Physics - Experiment · Physics 2010-04-08 John J. Back

We present the preliminary result of a search for the decay of $B^0\to K^{*+}\rho^-$. The data were recorded with the $BaBar$ detector at the PEPII collider and correspond to 123 million $B\bar{B}$ pairs produced in the $e^+e^-$…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

Preliminary results from the BABAR experiment on charmless B decays to charged pions or kaons, and the measurement of the B -> J/psi K* decay amplitudes are presented. The data sample, collected at the asymmetric-energy B-factory PEP-II at…

High Energy Physics - Experiment · Physics 2019-08-14 A. Hoecker

We present measurements of the branching fraction and time-dependent CP-violating (CPV) asymmetries in B0 --> K0S Pi0 decays based on 227 million Y(4S) --> BBbar decays collected with the BaBar detector at the PEP-II asymmetric-energy B…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

We present preliminary results of a search for B0-->K0-anti-K0 decays in the K0SK0S final state using a sample of approximately 23 million B-anti-B pairs collected by the BABAR detector at the PEP-II asymmetric B Factory at SLAC. We find no…

High Energy Physics - Experiment · Physics 2007-05-23 B. Aubert

We report a search for B -> J/psi D decays, based on a sample of 124 10^6 BBbar events collected with the BABAR detector at the PEP-II storage ring of the Stanford Linear Accelerator Center. No significant signal is found. We obtain upper…

High Energy Physics - Experiment · Physics 2010-03-19 The BABAR Collaboration , B. Aubert

We present improved measurements of the branching fractions and CP-asymmetries in the B0 --> pi+ pi-, B0 --> pi0 pi0, and B+ --> rho+ rho0 decays, which impact the determination of alpha. We find S(pi+ pi-) = -0.68 +/- 0.10 +/- 0.03 C(pi+…

High Energy Physics - Experiment · Physics 2019-08-13 Simone Stracka

We report an analysis of charmless hadronic decays of charged B mesons to the final state K+ pi0 pi0, using a data sample of 470.9 +/- 2.8 million BBbar events collected with the BaBar detector at the Upsilon(4S) resonance. We observe an…

High Energy Physics - Experiment · Physics 2010-05-21 The BABAR Collaboration , P. del Amo Sanchez

We present preliminary results of a search for several exclusive charmless hadronic B decays from electron-positron annihilation data collected by the BABAR detector near the Y(4S) resonance. These include three-body decay modes with final…

High Energy Physics - Experiment · Physics 2007-05-23 The BABAR Collaboration , B. Aubert

Recent results on baryonic B decays from the two b-factories, BABAR and Belle, are presented. These include studies of B+ to p pbar pi+, B+ to p Lambdabar gamma and B0 to p Lambdabar pi-; observations of B+ to p Lambdabar pi0, B to…

High Energy Physics - Experiment · Physics 2010-11-11 M. Z. Wang

The BABAR experiment has completed its first year of data-taking during which 21 $fb^{-1}$ of data were accumulated. We present preliminary results on two types of charmless B decays based on this data sample. The first, $B^0 \to…

High Energy Physics - Experiment · Physics 2009-09-25 M. Convery , BABAR Collaboration

We present the results of searches for B decays to charmless final states involving phi, fzero(980), and charged or neutral rho mesons. The data sample corresponds to 384 million BBbar pairs collected with the babar detector operating at…

High Energy Physics - Experiment · Physics 2010-04-12 The BaBar Collaboration , B. Aubert

We present a Dalitz plot analysis of charmless B+- decays to the final state pi+-pi+-pi-+ using a sample of (465+-5)x10^-6 BBbar pairs collected by the BABAR experiment at \sqrt{s} = 10.58 GeV. We measure the branching fractions BF(B+- -->…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

We present a search for the decay B+ -> tau+ nu using 383x10^6 BBbar pairs collected at the Y(4S) resonance with the BABAR detector at the SLAC PEP-II B-Factory. A sample of events with one reconstructed semileptonic B decay (B- -> D0 l nu…

High Energy Physics - Experiment · Physics 2010-04-12 The BABAR Collaboration , B. Aubert

We examine the three-body baryonic $\bar B\to {\bf B\bar B'}V$ decays with $V$ vector mesons in the standard model. We can simultaneously explain the recent experimental data on the decays of $B^-\to \Lambda\bar p \,\rho^0$ and $\bar B\to…

High Energy Physics - Phenomenology · Physics 2013-05-30 C. Q. Geng , Y. K. Hsiao
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