Article: Measurement of the B--> J/psiK*(892) decay amplitudes.
2001 Volume 87, Issue 24, Page(s) 241801
Abstract: We present a measurement of the decay amplitudes in B-->J/psiK*(892) channels using 20.7 fb(-1 ... a departure from the factorization hypothesis. Although the decay B-->/psiK(pi) proceeds mainly via K*(892 ...
Abstract | We present a measurement of the decay amplitudes in B-->J/psiK*(892) channels using 20.7 fb(-1) of data collected at the Upsilon(4S) resonance with the BABAR detector at PEP-II. We measure a P-wave fraction R(perpendicular) = (16.0 +/- 3.2 +/- 1.4)% and a longitudinal polarization fraction (59.7 +/- 2.8 +/- 2.4)%. The measurement of a relative phase that is neither 0 nor pi, phi = 2.50 +/- 0.20 +/-0.08 radians, favors a departure from the factorization hypothesis. Although the decay B-->/psiK(pi) proceeds mainly via K*(892), there is also evidence for K2*(1430) and K(pi) S-wave contributions. |
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Language | English |
Publishing date | 2001-12-10 |
Publishing country | United States |
Document type | Journal Article |
ZDB-ID | 208853-8 |
ISSN | 1079-7114 ; 0031-9007 |
ISSN (online) | 1079-7114 |
ISSN | 0031-9007 |
DOI | 10.1103/PhysRevLett.87.241801 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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