Measurement of the inclusive semileptonic branching fraction $\mathcal{B}(B_s^0 \rightarrow X^- \ell^+ ν_\ell)$ at Belle
Creators: name: Belle Collaboration
name: Oswald, C.
name: Urquijo, P.
name: Dingfelder, J.
name: Adachi, I.
name: Aihara, H.
name: Arinstein, K.
name: Asner, D. M.
name: Aushev, T.
name: Bakich, A. M.
name: Belous, K.
name: Bhardwaj, V.
name: Bhuyan, B.
name: Bondar, A.
name: Bonvicini, G.
name: Bozek, A.
name: Bračko, M.
name: Browder, T. E.
name: Chang, P.
name: Chekelian, V.
name: Chen, A.
name: Chen, P.
name: Cheon, B. G.
name: Chilikin, K.
name: Chistov, R.
name: Cho, K.
name: Chobanova, V.
name: Choi, S. -K.
name: Choi, Y.
name: Cinabro, D.
name: Dalseno, J.
name: Doležal, Z.
name: Drásal, Z.
name: Drutskoy, A.
name: Dutta, D.
name: Eidelman, S.
name: Esen, S.
name: Farhat, H.
name: Fast, J. E.
name: Gaur, V.
name: Gabyshev, N.
name: Ganguly, S.
name: Gillard, R.
name: Goh, Y. M.
name: Golob, B.
name: Haba, J.
name: Hayasaka, K.
name: Hayashii, H.
name: Horii, Y.
name: Hoshi, Y.
name: Hou, W. -S.
name: Hyun, H. J.
name: Iijima, T.
name: Ishikawa, A.
name: Itoh, R.
name: Iwasaki, Y.
name: Kah, D. H.
name: Kang, J. H.
name: Kato, E.
name: Kawasaki, T.
name: Kiesling, C.
name: Kim, H. J.
name: Kim, H. O.
name: Kim, J. B.
name: Kim, K. T.
name: Kim, M. J.
name: Kim, Y. J.
name: Kinoshita, K.
name: Klucar, J.
name: Ko, B. R.
name: Korpar, S.
name: Kouzes, R. T.
name: Križan, P.
name: Krokovny, P.
name: Kronenbitter, B.
name: Kuhr, T.
name: Kumita, T.
name: Kwon, Y. -J.
name: Lee, S. -H.
name: Li, J.
name: Li, Y.
name: Libby, J.
name: Liu, C.
name: Liu, Y.
name: Liu, Z. Q.
name: Liventsev, D.
name: Louvot, R.
name: Lutz, O.
name: Matvienko, D.
name: Miyabayashi, K.
name: Miyata, H.
name: Mizuk, R.
name: Mohanty, G. B.
name: Moll, A.
name: Muramatsu, N.
name: Nagasaka, Y.
name: Nakano, E.
name: Nakao, M.
name: Nedelkovska, E.
name: Nisar, N. K.
name: Nishida, S.
name: Nitoh, O.
name: Nozaki, T.
name: Ogawa, S.
name: Ohshima, T.
name: Okuno, S.
name: Olsen, S. L.
name: Ostrowicz, W.
name: Pakhlov, P.
name: Pakhlova, G.
name: Park, H.
name: Park, H. K.
name: Pedlar, T. K.
name: Pestotnik, R.
name: Petrič, M.
name: Piilonen, L. E.
name: Prim, M.
name: Prothmann, K.
name: Ritter, M.
name: Röhrken, M.
name: Rozanska, M.
name: Ryu, S.
name: Sahoo, H.
name: Saito, T.
name: Sakai, Y.
name: Sandilya, S.
name: Santelj, L.
name: Sanuki, T.
name: Sato, Y.
name: Schneider, O.
name: Schnell, G.
name: Schwanda, C.
name: Schwartz, A. J.
name: Senyo, K.
name: Seon, O.
name: Sevior, M. E.
name: Shapkin, M.
name: Shen, C. P.
name: Shibata, T. -A.
name: Shiu, J. -G.
name: Shwartz, B.
name: Sibidanov, A.
name: Simon, F.
name: Smerkol, P.
name: Sohn, Y. -S.
name: Sokolov, A.
name: Solovieva, E.
name: Starič, M.
name: Sumiyoshi, T.
name: Tatishvili, G.
name: Teramoto, Y.
name: Trabelsi, K.
name: Tsuboyama, T.
name: Uchida, M.
name: Uehara, S.
name: Uglov, T.
name: Unno, Y.
name: Uno, S.
name: Van Hulse, C.
name: Vanhoefer, P.
name: Varner, G.
name: Varvell, K. E.
name: Wang, C. H.
name: Wang, M. -Z.
name: Wang, P.
name: Watanabe, M.
name: Watanabe, Y.
name: Williams, K. M.
name: Won, E.
name: Yamamoto, H.
name: Yamashita, Y.
name: Zhang, C. C.
name: Zhang, Z. P.
name: Zhilich, V.
name: Zupanc, A.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences
subject: FOS: Physical sciences

description: We report a measurement of the inclusive semileptonic $B_s^0$ branching fraction in a $121~fb^{-1}$ data sample collected near the $Υ(5S)$ resonance with the Belle detector at the KEKB asymmetric energy $e^+ e^-$ collider. Events containing $B_s^0$ pairs are selected by reconstructing a tag side $D_s^+$ and identifying a signal side lepton $\ell^+$ ($\ell = e, μ$) that is required to have the same-sign charge to ensure that both originate from different $B_s^0$ mesons. The $B_s^0 \rightarrow X^- \ell^+ ν_\ell$ branching fraction is extracted from the ratio of the measured yields of $D_s^+$ mesons and $D_s^+ \ell^+$ pairs and the known production and branching fractions. The inclusive semileptonic branching fraction is measured to be $[9.6 \pm 0.4\text{(stat)} \pm 0.7\text{(syst)}]~\%$.
description: Updated results after correction of an error concerning semileptonic B_s decays in the Belle EvtGen installation. Details can be found in the attached Erratum