Amplitude Analysis of the B{sup {+-}}{yields}{phi}K*(892){sup {+-}} Decay

Journal Article · Fri Nov 16 04:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.99.201802· OSTI ID:21024465

Aubert, B; Bona, M; Boutigny, D; Karyotakis, Y; Lees, J P; Poireau, V; Prudent, X; Tisserand, V; Zghiche, A ^[1]; Tico, J Garra; Grauges, E ^[2]; Lopez, L; Palano, A ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Button-Shafer, J ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Facultat de Fisica, Departament ECM, Universitat de Barcelona, E-08028 Barcelona (Spain)
3. Dipartimento di Fisica and INFN, Universita di Bari, I-70126 Bari (Italy)
4. Institute of Physics, University of Bergen, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

We perform an amplitude analysis of B{sup {+-}}{yields}{phi}(1020)K*(892){sup {+-}} decay with a sample of about 384x10{sup 6} BB pairs recorded with the BABAR detector. Overall, twelve parameters are measured, including the fractions of longitudinal f{sub L} and parity-odd transverse f{sub perpendicular} amplitudes, branching fraction, strong phases, and six parameters sensitive to CP violation. We use the dependence on the K{pi} invariant mass of the interference between the J{sup P}=1{sup -} and 0{sup +} K{pi} components to resolve the discrete ambiguity in the determination of the strong and weak phases. Our measurements of f{sub L}=0.49{+-}0.05{+-}0.03, f{sub perpendicular}=0.21{+-}0.05{+-}0.02, and the strong phases point to the presence of a substantial helicity-plus amplitude from a presently unknown source.

• OSTI ID: 21024465
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 20 Vol. 99; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MINUS MESONS
B PLUS MESONS
BRANCHING RATIO
CP INVARIANCE
DECAY AMPLITUDES
HELICITY
INTERFERENCE
K*-892 MESONS
MASS
PAIR PRODUCTION
PARITY
PARTICLE DECAY
PHI MESONS