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paper

Vector-Tensor and Vector-Vector Decay Amplitude Analysis of B0->phi K*0

arXiv:hep-ex/0610073 · doi:10.1103/PhysRevLett.98.051801

Abstract

We perform an amplitude analysis of the decays B0->phi K^*_2(1430)0, phi K^*(892)0, and phi(K pi)^0_S-wave with a sample of about 384 million BBbar pairs recorded with the BABAR detector. The fractions of longitudinal polarization f_L of the vector-tensor and vector-vector decay modes are measured to be 0.853 +0.061-0.069 +-0.036 and 0.506 +-0.040 +-0.015, respectively. Overall, twelve parameters are measured for the vector-vector decay and seven parameters for the vector-tensor decay, including the branching fractions and parameters sensitive to CP-violation.

7 pages, 11 postscript figues, published in PRL