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Measurement of polarization and triple-product correlations in B-->phiK* decays |
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| Authors: | Chen K-F Abe K Abe K Aihara H Asano Y Aulchenko V Aushev T Bahinipati S Bakich A M Bedny I Bitenc U Bizjak I Blyth S Bondar A Bozek A Bracko M Brodzicka J Browder T E Chang M-C Chang P Chao Y Chen A Chen W T Cheon B G Chistov R Choi S-K Choi Y Chuvikov A Dalseno J Danilov M Dash M Drutskoy A Eidelman S Enari Y Fang F Fratina S Gabyshev N Garmash A Gershon T Gokhroo G Golob B Gorisek A Haba J Hastings N C Hayasaka K Hayashii H Hazumi M Hinz L Hokuue T Hoshi Y Hou S Hou W-S Hsiung Y B Iijima T Imoto A Inami K Ishikawa A Ishino H Itoh R Iwasaki M Iwasaki Y Kang J H Kang J S Kapusta P Katayama N |
| Affiliation: | Department of Physics, National Taiwan University, Taipei, Taiwan. |
| Abstract: | We present measurements of decay amplitudes and triple-product correlations in B-->phiK* decays based on 253 fb(-1) of data recorded at the Upsilon(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 B0-->phiK(*0) and 0.52 +/- 0.08 +/- 0.03 for B+ -->phiK(*+) decays. CP- and T-odd CP-violating triple-product asymmetries are measured to be consistent with zero. |
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