Measurement of Polarization and Triple-Product Correlations in BϕK* Decays

K.-F. Chen et al. (Belle Collaboration)
Phys. Rev. Lett. 94, 221804 – Published 8 June 2005

Abstract

We present measurements of decay amplitudes and triple-product correlations in BϕK* decays based on 253fb1 of data recorded at the Υ(4S) resonance with the Belle detector at the KEKB e+e storage ring. The decay amplitudes for the three different helicity states are determined from the angular distributions of final-state particles. The longitudinal polarization amplitudes are found to be 0.45±0.05±0.02 for B0ϕK*0 and 0.52±0.08±0.03 for B+ϕK*+ decays. CP- and T-odd CP-violating triple-product asymmetries are measured to be consistent with zero.

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  • Received 6 March 2005

DOI:https://doi.org/10.1103/PhysRevLett.94.221804

©2005 American Physical Society

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Vol. 94, Iss. 22 — 10 June 2005

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