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Amplitude analysis of the B+/--->phiK*(892)+/- decay |
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| Authors: | Aubert B Bona M Boutigny D Karyotakis Y Lees J P Poireau V Prudent X Tisserand V Zghiche A Garra Tico J Grauges E Lopez L Palano A Eigen G Stugu B Sun L Abrams G S Battaglia M Brown D N Button-Shafer J Cahn R N Groysman Y Jacobsen R G Kadyk J A Kerth L T Kolomensky Yu G Kukartsev G Lopes Pegna D Lynch G Mir L M Orimoto T J Ronan M T Tackmann K Wenzel W A del Amo Sanchez P Hawkes C M Watson A T Held T Koch H Lewandowski B Pelizaeus M Schroeder T Steinke M Walker D Asgeirsson D J Cuhadar-Donszelmann T Fulsom B G Hearty C Mattison T S McKenna J A Khan A Saleem M Teodorescu L Blinov V E Bukin A D |
| Institution: | Laboratoire de Physique des Particules, IN2P3/CNRS et Université de Savoie, F-74941 Annecy-Le-Vieux, France. |
| Abstract: | We perform an amplitude analysis of B+/--->phi(1020)K*(892)+/- decay with a sample of about 384 x 10(6) BBover ] pairs recorded with the BABAR detector. Overall, twelve parameters are measured, including the fractions of longitudinal fL and parity-odd transverse f perpendicular amplitudes, branching fraction, strong phases, and six parameters sensitive to CP violation. We use the dependence on the Kpi invariant mass of the interference between the JP=1(-) and 0+ Kpi components to resolve the discrete ambiguity in the determination of the strong and weak phases. Our measurements of fL=0.49+/-0.05+/-0.03, f 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. |
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