Time-dependent and time-integrated angular analysis of B→φKS0π0 and φK±π±
Creators
- Aubert, B.1
- Bona, M.1
- Karyotakis, Y.1
- Lees, J. P.1
- Poireau, V.1
- Prencipe, E.1
- Prudent, X.1
- Tisserand, V.1
- Garra Tico, J.2
- Grauges, E.2
- Lopez, L.3, 4
- Palano, A.3, 4
- Pappagallo, M.3, 4
- Eigen, G.5
- Stugu, B.5
- Sun, L.5
- Abrams, G. S.6
- Battaglia, M.6
- Brown, D. N.6
- Cahn, R. N.6
- and others
- BABAR Collaboration
- 1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
- 2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
- 3. Dipartmento di Fisica, Universita di Bari, I-70126 Bari (Italy)
- 4. INFN Sezione di Bari, I-70126 Bari (Italy)
- 5. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
- 6. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)
Description
We perform a time-dependent and time-integrated angular analysis of the decays B0→φK*(892)0, φK2*(1430)0, and φ(Kπ)0*0 with the final sample of about 465x106 BB pairs recorded with the BABAR detector. Twenty-four parameters are investigated, including the branching fractions, CP-violation parameters, and parameters sensitive to final-state interactions. We use the dependence on the Kπ invariant mass of the interference between the scalar and vector or tensor components to resolve discrete ambiguities of the strong and weak phases. We use the time evolution of the B→φKS0π0 channel to extract the CP-violation phase difference Δφ00=0.28±0.42±0.04 between the B and B decay amplitudes. When the B→φK±π± channel is included, the fractions of longitudinal polarization fL of the vector-vector and vector-tensor decay modes are measured to be 0.494±0.034±0.013 and 0.901-0.058+0.046±0.037, respectively. This polarization pattern requires the presence of a positive-helicity amplitude in the vector-vector decay from a currently unknown source.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.78.092008;
- arXiv
- arXiv:0808.3586v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 78
- Journal Issue
- 9
- Journal Page Range
- p. 092008-092008.27
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41005189
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- B MESONS; B NEUTRAL MESONS; BRANCHING RATIO; CP INVARIANCE; DECAY AMPLITUDES; FINAL-STATE INTERACTIONS; HELICITY; INTERFERENCE; K*2-1430 MESONS; K*-892 MESONS; MASS; PARTICLE DECAY; POLARIZATION; TIME DEPENDENCE
- Descriptors DEC
- AMPLITUDES; B MESONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; HADRONS; INTERACTIONS; INVARIANCE PRINCIPLES; MESONS; PARTICLE PROPERTIES; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; TENSOR MESONS; TRANSITION AMPLITUDES; VECTOR MESONS
Optional Information
- Notes
- (c) 2008 The American Physical Society
- Collaborations
- BABAR Collaboration