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Observation of X(3872) in B -> X(3872)K pi decays

Authors
Bala, A.Bhardwaj, V.Trabelsi, K.Singh, J. B.Abdesselam, A.Adachi, I.Aihara, H.Arinstein, K.Asner, D. M.Aulchenko, V.Aushev, T.Ayad, R.Aziz, T.Bahinipati, S.Bakich, A. M.Bansal, V.Barberio, E.Bhuyan, B.Bobrov, A.Bonvicini, G.Bozek, A.Bracko, M.Browder, T. E.Cervenkov, D.Chen, A.Cheon, B. G.Chistov, R.Cho, K.Chobanova, V.Choi, S. -K.Choi, Y.Cinabro, D.Dalseno, J.Dingfelder, J.Dolezal, Z.Drutskoy, A.Dutta, D.Eidelman, S.Epifanov, D.Farhat, H.Fast, J. E.Ferber, T.Frost, O.Gaur, V.Gabyshev, N.Garmash, A.Getzkow, D.Goh, Y. M.Golob, B.Grzymkowska, O.Haba, J.Hara, T.Hayashii, H.He, X. H.Heller, A.Horiguchi, T.Hou, W. -S.Huschle, M.Iijima, T.Ishikawa, A.Itoh, R.Iwasaki, Y.Jaegle, I.Joffe, D.Kang, K. H.Kato, E.Kawasaki, T.Kiesling, C.Kim, D. Y.Kim, J. B.Kim, J. H.Kim, K. T.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Ko, B. R.Kodys, P.Korpar, S.Krizan, P.Krokovny, P.Kuhr, T.Kumar, R.Kuzmin, A.Kwon, Y. -J.Lange, J. S.Lee, I. S.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Lukin, P.Matvienko, D.Miyabayashi, K.Miyake, H.Miyata, H.Mizuk, R.Mohanty, G. B.Mohanty, S.Moll, A.Moon, H. K.Mussa, R.Nakano, E.Nakao, M.Natkaniec, Z.Nayak, M.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Olsen, S. L.Pakhlov, P.Pakhlova, G.Park, C. W.Park, H.Pestotnik, R.Petric, M.Piilonen, L. E.Ribezl, E.Ritter, M.Sakai, Y.Sandilya, S.Santelj, L.Sanuki, T.Savinov, V.Schneider, O.Schnell, G.Schwanda, C.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Sibidanov, A.Simon, F.Sohn, Y. -S.Sokolov, A.Solovieva, E.Staric, M.Steder, M.Sumihama, M.Sumiyoshi, T.Tanida, K.Tatishvili, G.Teramoto, Y.Thorne, F.Trusov, V.Uchida, M.Uehara, S.Uglov, T.Unno, Y.Uno, S.Urquijo, P.Usov, Y.Vanhoefer, P.Varner, G.Vinokurova, A.Vorobyev, V.Wagner, M. N.Wang, C. H.Wang, X. L.Watanabe, Y.Williams, K. M.Won, E.Yamamoto, H.Yamashita, Y.Yashchenko, S.Yuan, C. Z.Zhang, Z. P.Zhilich, V.Zhulanov, V.Ziegler, M.Zupanc, A.
Issue Date
2-3월-2015
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW D, v.91, no.5
Indexed
SCOPUS
Journal Title
PHYSICAL REVIEW D
Volume
91
Number
5
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/94161
DOI
10.1103/PhysRevD.91.051101
ISSN
2470-0010
Abstract
We report the first observation of B-0 -> X(3872)(K+pi(-)) and evidence for B+ -> X(3872)(K-0 pi(+)). We measure the product of branching fractions for the former to be B(B-0 -> X(3872)(K+pi(-)) x B(X(3872) -> J/psi pi(+)pi(-)) = (7.9 +/- 1.3(stat) +/- 0.4(syst) x 10(-6) and find that B-0 -> X(3872)K*(892)(0) does not dominate the B-0 -> X(3872)K+pi(-) decay mode. We also measure B(B+ -> X(3872)(K-0 pi(+))) x B(X(3872) -> J/psi pi(+)pi(-)) = (10.6 +/- 3.0(stat) +/- 0.9(syst) x 10(-6). This study is based on the full data sample of 711 fb(-1) (772 x 10(6)B (B) over bar pairs) collected at the Upsilon(4S) resonance with the Belle detector at the KEKB collider.
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