Charmless 2- and 3-body B decays and the angle alpha (phi2)

We present preliminary measurements of branching fractions and CP-asymmetry parameters in two- and three-body charmless hadronic B decays. The available data sample consists of 227 million Upsilon(4S) B decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. W...

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Bibliographic Details
Main Author Cristinziani, Markus
Format Journal Article
LanguageEnglish
Published 19.10.2004
Subjects
Physics - High Energy Physics - Experiment
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Summary:We present preliminary measurements of branching fractions and CP-asymmetry parameters in two- and three-body charmless hadronic B decays. The available data sample consists of 227 million Upsilon(4S) B decays collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at SLAC. We establish the observation of the decays B --> pi0 pi0 and B0 --> K0K0bar and constrain the CKM angle alpha with a full SU(2) isospin analysis in the B --> pi pi system and with a B0 --> pi+ pi- pi0 time-dependent Dalitz plot analysis.
Bibliography:SLAC-PUB-10807
DOI:10.48550/arxiv.hep-ex/0410056