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          Institute: MPI für Physik     Collection: YB 2016     Display Documents

ID: 716467.0, MPI für Physik / YB 2016
Observation of $X(3872)$ in $B \\to X(3872) K\\pi$ 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.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chen, A.; Cheon, B. G.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, S. -K.; Choi, Y.; Cinabro, D.; Dalseno, J.; Dingfelder, J.; Doležal, 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.; Kodyš, P.; Korpar, S.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Lee, I. S.; Li, Y.; Li Gioi, L.; Libby, 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.; Petrič, M.; Piilonen, L. E.; Ribežl, 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.; Starič, 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.
Date of Publication (YYYY-MM-DD):2015
Title of Journal:Physical Review D
Journal Abbrev.:Phys.Rev.D
Issue / Number:91
Start Page:051101
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We report the first observation of $B^0 \\to X(3872) (K^{+}\\pi^{-})$ and evidence for $B^+ \\to X(3872) (K^{0}\\pi^{+})$. We measure the product of branching fractions for the former to be ${\\cal B}(B^0 \\to X(3872) (K^+ \\pi^-)) \\times {\\cal B}(X(3872) \\to J/\\psi \\pi^+ \\pi^-) = (7.9 \\pm 1.3(\\mbox{stat.})\\pm 0.4(\\mbox{syst.})) \\times 10^{-6}$ and find that $B^{0}\\to X(3872) K^{*}(892)^{0}$ does not dominate the $B^{0}\\to X(3872)K^{+}\\pi^{-}$ decay mode. We also measure ${\\cal B}(B^+ \\to X(3872) (K^0 \\pi^+)) \\times {\\cal B}(X(3872) \\to J/\\psi \\pi^+ \\pi^-) = (10.6 \\pm 3.0(\\mbox{stat.}) \\pm 0.9(\\mbox{syst.})) \\times 10^{-6}$. This study is based on the full data sample of 711~fb$^{-1}$ ($772\\times 10^6 B\\bar B$ pairs) collected at the $\\Upsilon(4S)$ resonance with the Belle detector at the KEKB collider.
Classification / Thesaurus:Belle II
Comment of the Author/Creator:7 pages, 3 figures
External Publication Status:published
Document Type:Article
Communicated by:MPI für Physik
Affiliations:MPI für Physik
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