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Inclusive and exclusive measurements of B decays to chi(c1) and chi(c2) at Belle

Authors
Bhardwaj, V.Miyabayashi, K.Panzenboeck, E.Trabelsi, K.Frey, A.Abdesselam, A.Adachi, I.Aihara, H.Al Said, S.Arinstein, K.Asner, D. M.Atmacan, H.Aulchenko, V.Aushev, T.Ayad, R.Babu, V.Badhrees, I.Bahinipati, S.Bakich, A. M.Bala, A.Bansal, V.Barberio, E.Bhuyan, B.Biswal, J.Bobrov, A.Bondar, A.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chekelian, V.Chen, A.Cheon, B. G.Chilikin, K.Chistov, R.Cho, K.Chobanova, V.Choi, S-K.Choi, Y.Cinabro, D.Dalseno, J.Danilov, M.Dolezal, Z.Dutta, D.Eidelman, S.Farhat, H.Fast, J. E.Ferber, T.Frost, O.Fulsom, B. G.Gaur, V.Gabyshev, N.Ganguly, S.Garmash, A.Gillard, R.Glattauer, R.Goh, Y. M.Goldenzweig, P.Golob, B.Greenwald, D.Haba, J.Hamer, P.Hayasaka, K.Hayashii, H.He, X. H.Hou, W-S.Iijima, T.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, Y.Jaegle, I.Joffe, D.Joo, K. K.Julius, T.Kato, E.Katrenko, P.Kawasaki, T.Kiesling, C.Kim, D. Y.Kim, J. B.Kim, K. T.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Ko, B. R.Kobayashi, N.Kodys, P.Korpar, S.Krizan, P.Krokovny, P.Kuhr, T.Kumar, R.Kumita, T.Kuzmin, A.Kwon, Y-J.Lee, I. S.Li, C.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Loos, A.Lukin, P.Masuda, M.Matvienko, D.Miyata, H.Mizuk, R.Mohanty, G. B.Mohanty, S.Moll, A.Moon, H. K.Mussa, R.Nakano, E.Nakao, M.Nanut, T.Natkaniec, Z.Nayak, M.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Pakhlova, G.Pal, B.Park, C. W.Park, H.Pedlar, T. K.Pestotnik, R.Petric, M.Piilonen, L. E.Pulvermacher, C.Purohit, M. V.Rauch, J.Ribezl, E.Ritter, M.Rostomyan, A.Sahoo, H.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Sato, Y.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Seino, Y.Semmler, D.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T-A.Shiu, J-G.Shwartz, B.Simon, F.Singh, J. B.Sohn, Y-S.Sokolov, A.Solovieva, E.Staric, M.Stypula, J.Sumihama, M.Sumiyoshi, T.Tamponi, U.Tanida, K.Teramoto, Y.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Van Hulse, C.Vanhoefer, P.Varner, G.Vinokurova, A.Vorobyev, V.Wang, C. H.Wang, M-Z.Wang, P.Wang, X. L.Watanabe, M.Watanabe, Y.Wehle, S.Won, E.Yamaoka, J.Yashchenko, S.Ye, H.Yook, Y.Yuan, C. Z.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhulanov, V.Zupanc, A.
Issue Date
29-3월-2016
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.93, no.5
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
93
Number
5
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/89185
DOI
10.1103/PhysRevD.93.052016
ISSN
2470-0010
Abstract
We report inclusive and exclusive measurements for chi(c1) and chi(c2) production in B decays. We measure B(B -> chi X-c1) = (3.03 +/- 0.05 (stat) +/- 0.24(syst)) x 10(-3) and B(B -> chi X-c2) = (0.70 +/- 0.06 (stat) +/- 0.10(syst)) x 10(-3). For the first time, chi(c2) production in exclusive B decays in the modes B-0 -> chi(c2) pi K--(+) and B-0 -> chi(c2) pi(-)pi K-+(+) has been observed, along with first evidence for the B-0 -> chi(c2) pi K--(s)0 decay mode. For chi c1 production, we report the first observation in the B+ -> chi(c1) pi(-)pi K-+(+), B-0 -> chi(c1) pi(-)pi K-+(s)0 and B-0 -> chi(c1) pi(-)pi K-+(+) decay modes. Using these decay modes, we observe a difference in the production mechanism of chi(c2) in comparison to chi(c1) in B decays. In addition, we report searches for X(3872) and chi(c1) (2P) in the B+ -> (chi(c1) pi(+)pi(-))K+ decay mode. The reported results use 772 x 10(6) B (B) over bar events collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider.
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