Angular analysis of B0→φK* decays and search for CP violation at Belle

M. Prim, I. Adachi, H. Aihara, D. M. Asner, T. Aushev, A. M. Bakich, A. Bala, B. Bhuyan, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, D. Červenkov, M. C. Chang, P. Chang, V. Chekelian, A. Chen, P. Chen, B. G. Cheon, R. ChistovK. Cho, V. Chobanova, Y. Choi, D. Cinabro, M. Danilov, Z. Doležal, Z. Drásal, D. Dutta, S. Eidelman, H. Farhat, M. Feindt, T. Ferber, A. Frey, V. Gaur, S. Ganguly, R. Gillard, Y. M. Goh, B. Golob, H. Hayashii, M. Heider, Y. Hoshi, W. S. Hou, Y. B. Hsiung, T. Iijima, K. Inami, A. Ishikawa, R. Itoh, I. Jaegle, T. Julius, D. H. Kah, H. Kawai, T. Kawasaki, H. Kichimi, C. Kiesling, D. Y. Kim, H. O. Kim, J. B. Kim, J. H. Kim, M. J. Kim, Y. J. Kim, K. Kinoshita, J. Klucar, B. R. Ko, P. Kodyš, P. Križan, P. Krokovny, B. Kronenbitter, T. Kuhr, T. Kumita, Y. J. Kwon, J. S. Lange, S. H. Lee, J. Li, J. Libby, P. Lukin, D. Matvienko, K. Miyabayashi, H. Miyata, R. Mizuk, G. B. Mohanty, A. Moll, N. Muramatsu, R. Mussa, I. Nakamura, E. Nakano, M. Nakao, M. Nayak, E. Nedelkovska, C. Niebuhr, N. K. Nisar, S. Nishida, O. Nitoh, Y. Onuki, G. Pakhlova, H. Park, H. K. Park, T. K. Pedlar, R. Pestotnik, M. Petrič, L. E. Piilonen, M. Ritter, M. Röhrken, A. Rostomyan, M. Rozanska, H. Sahoo, T. Saito, Y. Sakai, S. Sandilya, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, K. Senyo, M. E. Sevior, M. Shapkin, C. P. Shen, T. A. Shibata, J. G. Shiu, A. Sibidanov, Y. S. Sohn, A. Sokolov, E. Solovieva, M. Starič, M. Steder, T. Sumiyoshi, U. Tamponi, G. Tatishvili, Y. Teramoto, K. Trabelsi, T. Tsuboyama, M. Uchida, S. Uehara, T. Uglov, Y. Unno, S. Uno, Y. Usov, S. E. Vahsen, C. Van Hulse, P. Vanhoefer, G. Varner, V. Vorobyev, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, M. Watanabe, Y. Watanabe, K. M. Williams, E. Won, Y. Yamashita, S. Yashchenko, Z. P. Zhang, V. Zhilich, A. Zupanc

研究成果: 雜誌貢獻期刊論文同行評審

24 引文 斯高帕斯(Scopus)

摘要

We report the measurements of branching fractions and CP violation asymmetries in B0→φK* decays obtained in an angular analysis using the full data sample of 772×106BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We perform a partial wave analysis to distinguish among scalar [B0→φ(Kπ)0*], vector [B0→φK*(892)0] and tensor [B0→φK2* (1430)0] components, and determine the corresponding branching fractions to be B[B0→φ(Kπ)0*]=(4.3±0.4±0.4)×10 -6, B[B0→φK*(892)0]=(10.4±0. 5±0.6)×10-6 and B[B0→φK2*(1430)0]=(5.5-0. 7+0.9±1.0)×10-6. We also measure the longitudinal polarization fraction fL in B0→φK*(892)0 and B0→φK2*(1430)0 decays to be 0.499±0.030±0.018 and 0.918-0.060+0.029±0.012, respectively. The first quoted uncertainties are statistical and the second are systematic. In total, we measure 26 parameters related to branching fractions, polarization and CP violation in the B0→φK* system. No evidence for CP violation is found.

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文章編號072004
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
88
發行號7
DOIs
出版狀態已出版 - 10 10月 2013

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