Amplitude Analysis of the B+- -> phi K*(892)+- Decay

B Aubert, Pablo Del Amo Sanchez, Christopher Hawkes, Alan Watson

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33 Citations (Scopus)


We perform an amplitude analysis of B+/--->phi(1020)K*(892)+/- decay with a sample of about 384 x 10(6) BB[over ] 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.
Original languageEnglish
Pages (from-to)201802
Number of pages1
JournalPhysical Review Letters
Early online date1 Nov 2007
Publication statusPublished - 1 Nov 2007


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