Observation of $X(3872)$ in $B \to X(3872) Kπ$ decays
Creators: name: Bala, A.
name: Bhardwaj, V.
name: Trabelsi, K.
name: Singh, J. B.
name: Abdesselam, A.
name: Adachi, I.
name: Aihara, H.
name: Arinstein, K.
name: Asner, D. M.
name: Aulchenko, V.
name: Aushev, T.
name: Ayad, R.
name: Aziz, T.
name: Bahinipati, S.
name: Bakich, A. M.
name: Bansal, V.
name: Barberio, E.
name: Bhuyan, B.
name: Bobrov, A.
name: Bonvicini, G.
name: Bozek, A.
name: Bračko, M.
name: Browder, T. E.
name: Červenkov, D.
name: Chen, A.
name: Cheon, B. G.
name: Chistov, R.
name: Cho, K.
name: Chobanova, V.
name: Choi, S. -K.
name: Choi, Y.
name: Cinabro, D.
name: Dalseno, J.
name: Dingfelder, J.
name: Doležal, Z.
name: Drutskoy, A.
name: Dutta, D.
name: Eidelman, S.
name: Epifanov, D.
name: Farhat, H.
name: Fast, J. E.
name: Ferber, T.
name: Frost, O.
name: Gaur, V.
name: Gabyshev, N.
name: Garmash, A.
name: Getzkow, D.
name: Goh, Y. M.
name: Golob, B.
name: Grzymkowska, O.
name: Haba, J.
name: Hara, T.
name: Hayashii, H.
name: He, X. H.
name: Heller, A.
name: Horiguchi, T.
name: Hou, W. -S.
name: Huschle, M.
name: Iijima, T.
name: Ishikawa, A.
name: Itoh, R.
name: Iwasaki, Y.
name: Jaegle, I.
name: Joffe, D.
name: Kang, K. H.
name: Kato, E.
name: Kawasaki, T.
name: Kiesling, C.
name: Kim, D. Y.
name: Kim, J. B.
name: Kim, J. H.
name: Kim, K. T.
name: Kim, M. J.
name: Kim, S. H.
name: Kim, Y. J.
name: Kinoshita, K.
name: Ko, B. R.
name: Kodyš, P.
name: Korpar, S.
name: Križan, P.
name: Krokovny, P.
name: Kuhr, T.
name: Kumar, R.
name: Kuzmin, A.
name: Kwon, Y. -J.
name: Lange, J. S.
name: Lee, I. S.
name: Li, Y.
name: Gioi, L. Li
name: Libby, J.
name: Liventsev, D.
name: Lukin, P.
name: Matvienko, D.
name: Miyabayashi, K.
name: Miyake, H.
name: Miyata, H.
name: Mizuk, R.
name: Mohanty, G. B.
name: Mohanty, S.
name: Moll, A.
name: Moon, H. K.
name: Mussa, R.
name: Nakano, E.
name: Nakao, M.
name: Natkaniec, Z.
name: Nayak, M.
name: Nisar, N. K.
name: Nishida, S.
name: Ogawa, S.
name: Okuno, S.
name: Olsen, S. L.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, C. W.
name: Park, H.
name: Pestotnik, R.
name: Petrič, M.
name: Piilonen, L. E.
name: Ribežl, E.
name: Ritter, M.
name: Sakai, Y.
name: Sandilya, S.
name: Santelj, L.
name: Sanuki, T.
name: Savinov, V.
name: Schneider, O.
name: Schnell, G.
name: Schwanda, C.
name: Senyo, K.
name: Seon, O.
name: Sevior, M. E.
name: Shebalin, V.
name: Shen, C. P.
name: Shibata, T. -A.
name: Shiu, J. -G.
name: Shwartz, B.
name: Sibidanov, A.
name: Simon, F.
name: Sohn, Y. -S.
name: Sokolov, A.
name: Solovieva, E.
name: Starič, M.
name: Steder, M.
name: Sumihama, M.
name: Sumiyoshi, T.
name: Tanida, K.
name: Tatishvili, G.
name: Teramoto, Y.
name: Thorne, F.
name: Trusov, V.
name: Uchida, M.
name: Uehara, S.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Urquijo, P.
name: Usov, Y.
name: Vanhoefer, P.
name: Varner, G.
name: Vinokurova, A.
name: Vorobyev, V.
name: Wagner, M. N.
name: Wang, C. H.
name: Wang, X. L.
name: Watanabe, Y.
name: Williams, K. M.
name: Won, E.
name: Yamamoto, H.
name: Yamashita, Y.
name: Yashchenko, S.
name: Yuan, C. Z.
name: Zhang, Z. P.
name: Zhilich, V.
name: Zhulanov, V.
name: Ziegler, M.
name: Zupanc, A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We report the first observation of $B^0 \to X(3872) (K^{+}π^{-})$ and evidence for $B^+ \to X(3872) (K^{0}π^{+})$. We measure the product of branching fractions for the former to be ${\cal B}(B^0 \to X(3872) (K^+ π^-)) \times {\cal B}(X(3872) \to J/ψπ^+ π^-) = (7.9 \pm 1.3(\mbox{stat.})\pm 0.4(\mbox{syst.})) \times 10^{-6}$ and find that $B^{0}\to X(3872) K^{*}(892)^{0}$ does not dominate the $B^{0}\to X(3872)K^{+}π^{-}$ decay mode. We also measure ${\cal B}(B^+ \to X(3872) (K^0 π^+)) \times {\cal B}(X(3872) \to J/ψπ^+ π^-) = (10.6 \pm 3.0(\mbox{stat.}) \pm 0.9(\mbox{syst.})) \times 10^{-6}$. This study is based on the full data sample of 711~fb$^{-1}$ ($772\times 10^6 B\bar B$ pairs) collected at the $Υ(4S)$ resonance with the Belle detector at the KEKB collider.
description: 7 pages, 3 figures