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

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题名:	Angular analysis of B0→φK* decays and search for CP violation at Belle
作者:	陳鎰鋒;Yamashita, Y.;Watanabe, Y.;Inami, K.;Krokovny, P.;Kichimi, H.;Park, H. K.;Pakhlova, G.;Nakano, E.;Eidelman, Semen;Sokolov, Andrey;Sevior, M. E.;Ishikawa, A.;Chang, P.;Kuhr, T.;Wang, X. L.;Shiu, J. G.;Červenkov, D.;Mohanty, G. B.;Choi, Y.;Cinabro, D.;Lange, J. S.;Nakamura, I.;Kronenbitter, B.;Steder, M.;Schwanda, C.;Aihara, Hiroaki;Won, E.;Starič, M.;Jaegle, I.;Kinoshita, K.;Tatishvili, G.;Senyo, K.;Chistov, R.;Chen, Po-Hsun;Kim, D. Y.;Miyata, H.;Mussa, R.;Chen, A.;Piilonen, Leo;Bakich, A. M.;Sahoo, H.;Kodys, Peter;Nayak, M.;Feindt, M.;Onuki, Y.;Sato, Yukinori;Moll, A.;Bračko, M.;Mizuk, R.;Wang, P.;Dutta, D.;Rostomyan, A.;Zhang, Z. P.;Röhrken, M.;Lukin, P.;Nedelkovska, E.;Tamponi, U.;Uno, S.;Sibidanov, A.L.;Matvienko, D.;Semmler, D.;Hsiung, Y. B.;Kim, Yongsun;Kah, D. H.;Sandilya, S.;Hou, W. S.;Itoh, R.;Kawai, H.;Solovieva, E.;Julius, T.;Kwon, Y. J.;Bozek, A.;Nisar, N. K.;Klucar, J.;Sumiyoshi, T.;Sakai, Y.;Zupanc, A.;Kim, H. O.;Uehara, S.;Chekelian, V.;Drásal, Z.;Danilov, Mikhail;Savinov, V.;Unno, Yoshinobu;Kiesling, C.;Kim, M. J.;Hulse, C. Van;Uchida, M.;Petrič, Marko;Varner, G.;Schneider, O.;Nakao, M.;Teramoto, Y.;Vahsen, S. E.;Prim, M. T.;Zhilich, V.;Heider, M.;Bhuyan, B.;Goh, Y. M.;Sohn, Y. S.
贡献者:	理學院物理學系
关键词:	ddc:530;FOS: Physical sciences;High Energy Physics - Experiment;High Energy Physics - Experiment (hep-ex);info:eu-repo/classification/ddc/530;Physics
日期:	2013-10-10
上传时间:	2026-04-23 11:42:32 (UTC+8)
出版者:	American Physical Society;American Physical Society (APS)
摘要:	摘要： We report the measurements of branching fractions and CP violation asymmetries in $B^0 \to K^{}$ decays obtained in an angular analysis using the full data sample of $772 \times 10^6 B\bar{B}$ pairs collected at the $ (4S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. We perform a partial wave analysis to distinguish among scalar [$B^0 \to (K )^{}_{0}$], vector [$B^0 \to K^{}(892)^{0}$] and tensor [$B^0 \to K^{}_{2}(1430)^{0}$] components, and determine the corresponding branching fractions to be $\mathcal{B}[B^0 \to (K )^{}_{0}] = (4.3 \pm 0.4 \pm 0.4) \times 10^{-6}$, $\mathcal{B}[B^0 \to K^{}(892)^{0}] = (10.4 \pm 0.5 \pm 0.6) \times 10^{-6}$ and $\mathcal{B}[B^0 \to K^{}_{2}(1430)^{0}] = (5.5 ^{+0.9}_{-0.7} \pm 1.0) \times 10^{-6}$. We also measure the longitudinal polarization fraction $f_L$ in $B^0 \to K^{}(892)^{0}$ and $B^0 \to K^{}_{2}(1430)^{0}$ decays to be $0.499 \pm 0.030 \pm 0.018$ and $0.918 ^{+0.029}_{-0.060} \pm 0.012$, 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 $B^0 \to K^{}$ system. No evidence for CP violation is found. 15 pages, 6 figures, to be submitted to PRD 出版者： American Physical Society (APS) 出版日期： 2013-10-10 出處： Physical Review D, 2013-10, Vol.88 識別號： ISSN: 1550-7998 識別號： EISSN: 1550-2368 識別號： DOI: 10.1103/physrevd.88.072004 識別號： DOI: 10.48550/arxiv.1308.1830
显示于类别:	[物理學系] 期刊論文

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