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We study B0->rho0rho0 decays in a sample of 465*10^6 Upsilon (4S)->BBbar events collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider located at the Stanford Linear Accelerator Center (SLAC). We measure the…

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

We report on the first Belle II measurements of branching fractions and CP-violating charge asymmetries in charmless $B$ decays. We use 34.6 fb$^{-1}$ from electron-positron collisions collected in 2019 and 2020 at the $\Upsilon(4S)$…

High Energy Physics - Experiment · Physics 2021-03-16 Sebastiano Raiz

Decays of the type B-->D(*)anti-D(*) can be used to provide a measurement of the parameter sin2beta of the Unitarity Triangle that is complementary to that derived from the mode \bpsiks. Here we report a measurement of the branching…

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

We report branching fractions and CP asymmetries for $B \to \eta K^*$ and $B \to \eta \rho$ decays. These results are obtained from a $414 {\rm fb}^{-1}$ data sample collected at the $\Upsilon(4S)$ resonance, with the Belle detector at the…

High Energy Physics - Experiment · Physics 2019-08-14 C. H. Wang

We report an updated amplitude analysis of the charmless hadronic decays of neutral B mesons to K+pi-pi0. With a sample of 454 million Upsilon(4S) -> B0B0bar decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory…

High Energy Physics - Experiment · Physics 2008-09-02 The BABAR Collaboration , B. Aubert

We present preliminary measurements of the B meson decays B+->etapi+, B+->etaK+, and B0->etaK0. The data were recorded with the BABAR detector at PEP II and correspond to 88.9 million BBbar pairs produced in e+e- annihilation through the…

High Energy Physics - Experiment · Physics 2009-09-29 The BABAR Collaboration , B. Aubert

We present a measurement of time-dependent CP-violating asymmetries in decays of neutral B mesons to the final states D*-+ pi+-, using approximately 82 million B B bar events recorded by the BABAR experiment at the PEP-II e+ e- storage…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert

We search for direct CP violation in charmless hadronic B decays observed in a sample of about 22.7 million $B\bar{B}$ pairs collected with the BABAR detector at the PEP-II asymmetric-energy $e^+e^-$ collider. We measure the following…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert

We present a measurement of time-dependent CP-violating asymmetries in neutral B meson decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center. The data sample consists of…

High Energy Physics - Experiment · Physics 2008-11-26 B. Aubert

We present a measurement of the time-dependent CP-violating asymmetries in B0 -> K0S pi0 decays based on 348 million Y(4S) -> BBbar events collected by the BABAR experiment at the PEP-II asymmetric-energy B Factory at SLAC. We measure the…

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

We search for the decays B- -> phi K- gamma and B0bar -> phi K0bar gamma in a data sample of 228 million BBbar pairs collected at the Upsilon(4S) resonance with the BaBar detector. We measure the branching fraction B(B- -> phi K- gamma) =…

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

Using a sample of 227 million $\Upsilon(4S) \to B \bar{B}$ events collected with the $BABAR$ detector at the PEP-II $B$ Factory in 1999--2004, we study $B^- \to D^0 K^*(892)^-$ decays where $K^{*-} \to K^0_S \pi^-$ and $D^0 \to K^-\pi^+,…

High Energy Physics - Experiment · Physics 2009-09-29 B. Aubert , BABAR Collaboration

We present a summary of measurements sensitive to the CKM angle \phi 2 (\alpha), performed by the BaBar and the Belle experiments which both collect B\bar{B} pairs produced at the \Upsilon(4S) resonance in asymmetric e+e- collisions. We…

High Energy Physics - Experiment · Physics 2013-07-31 Pit Vanhoefer

Relative branching fractions of B^0_d,s -> h^+ h^'- decays (where h, h' = K or pi) and the direct CP asymmetry A_CP in the B^0_d -> K^+ pi^- mode are measured with 179 +- 11 pb^-1 of data collected at sqrt{s} = 1.96 TeV using the CDF II…

High Energy Physics - Experiment · Physics 2012-11-14 Andreas Warburton

We report measurements of the branching fraction and CP violation parameters in B0 -> D+D- decays. The results are based on a data sample that contains 535 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance, with the Belle detector…

High Energy Physics - Experiment · Physics 2019-08-14 S. Fratina

We report preliminary results from a study of the charmless exclusive semileptonic decay B0 -> pi- l+ nu based on the data collected at the Upsilon(4S) resonance using the BABAR detector at SLAC. The analysis uses events in which the signal…

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

We present an updated measurement of the time-dependent CP-violating asymmetry in B0->K0S K0S K0S decays based on 347 million Upsilon(4S)->B Bbar decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. We…

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

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

Preliminary results are presented on a search for several exclusive charmless hadronic B decays, from data collected by the BABAR detector near the Upsilon(4S) resonance. These include two-body decay modes h^{+/-}h^{-/+} three-body decay…

High Energy Physics - Experiment · Physics 2007-05-23 Theresa J. Champion

We present measurements of time-dependent CP-violating asymmetries in neutral B decays to several CP eigenstates. The measurement uses a data sample of 23 million Upsilon(4S)-->B-anti-B decays collected by the BABAR detector at the PEP-II…

High Energy Physics - Experiment · Physics 2008-11-26 The BABAR Collaboration , B. Aubert
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