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          Institute: MPI für Physik     Collection: YB 2016     Display Documents

ID: 716474.0, MPI für Physik / YB 2016
Semi-inclusive studies of semileptonic $B_s$ decays at Belle
Authors:Belle Collaboration; Oswald, C.; Urquijo, P.; Dingfelder, J.; Abdesselam, A.; Adachi, I.; Aihara, H.; Al Said, S.; Asner, D. M.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bakich, A. M.; Bhardwaj, V.; Bobrov, A.; Bonvicini, G.; Bozek, A.; Bračko, M.; Browder, T. E.; Červenkov, D.; Chang, M. -C.; Chekelian, V.; Chen, A.; Cheon, B. G.; Chilikin, K.; Cho, K.; Chobanova, V.; Choi, Y.; Cinabro, D.; Dalseno, J.; Doležal, Z.; Drásal, Z.; Drutskoy, A.; Dutta, D.; Eidelman, S.; Farhat, H.; Fast, J. E.; Ferber, T.; Frost, O.; Fulsom, B. G.; Gaur, V.; Gabyshev, N.; Ganguly, S.; Garmash, A.; Getzkow, D.; Gillard, R.; Glattauer, R.; Goh, Y. M.; Goldenzweig, P.; Golob, B.; Grzymkowska, O.; Hara, T.; Hasenbusch, J.; Hayasaka, K.; Hayashii, H.; He, X. H.; Hou, W. -S.; Huschle, M.; Hyun, H. J.; Iijima, T.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Jaegle, I.; Julius, T.; Kang, K. H.; Kapusta, P.; 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.; Kumita, T.; Kwon, Y. -J.; Lange, J. S.; Lee, D. H.; Lee, I. S.; Li, Y.; Li Gioi, L.; Libby, J.; Liventsev, D.; Lukin, P.; Matvienko, D.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Moon, H. K.; Nakano, E.; Nakao, M.; Nakazawa, H.; Nanut, T.; Natkaniec, Z.; Nayak, M.; Nishida, S.; Nozaki, T.; Okuno, S.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Pedlar, T. K.; Pesántez, L.; Pestotnik, R.; Petrič, M.; Piilonen, L. E.; Pulvermacher, C.; Ribežl, E.; Ritter, M.; Rostomyan, A.; Rozanska, M.; Ryu, S.; Sakai, Y.; Sandilya, S.; Santelj, L.; Sanuki, T.; Sato, Y.; Savinov, V.; Schneider, O.; Schnell, G.; Schwanda, C.; Semmler, D.; Senyo, K.; Seon, O.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shibata, T. -A.; Shiu, J. -G.; Sibidanov, A.; Simon, F.; Sohn, Y. -S.; Solovieva, E.; Stanič, S.; Starič, M.; Stypula, J.; Sumihama, M.; Sumiyoshi, T.; Tamponi, U.; Teramoto, Y.; Trabelsi, K.; Uchida, M.; Unno, Y.; Uno, S.; Usov, Y.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Vinokurova, A.; Vorobyev, V.; Vossen, A.; Wagner, M. N.; Wang, C. H.; Wang, M. -Z.; Wang, P.; Wang, X. L.; Watanabe, Y.; Williams, K. M.; Won, E.; Yamamoto, H.; Yashchenko, S.; Yook, Y.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.
Date of Publication (YYYY-MM-DD):2015
Title of Journal:Physical Review D
Journal Abbrev.:Phys.Rev.D
Issue / Number:92
Start Page:072013
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:We present an analysis of the semi-inclusive decays $B_s \\to D_s^- X \\ell^+ \\nu$ and $B_s \\to D_s^{*-} X \\ell^+ \\nu$, where $X$ denotes a final state that may consist of additional hadrons or photons and $\\ell$ is an electron or muon. The studied $B_s$ decays are contained in the $121.4~{\\rm fb}^{-1}$ $\\Upsilon(5S)$ data sample collected by the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. The branching fractions of the decays are measured to be $\\mathcal{B}(B_s \\to D_s^- X \\ell^+ \\nu) = [8.2 \\pm 0.2 (\\text{stat}) \\pm 0.6 (\\text{syst}) \\pm 1.4 (\\text{ext})]\\%$ and $\\mathcal{B}(B_s \\to D_s^{*-} X \\ell^+ \\nu) = [5.4 \\pm 0.4 (\\text{stat}) \\pm 0.4 (\\text{syst}) \\pm 0.9 (\\text{ext})]\\%$, where the first two uncertainties are statistical and systematic and the last is due to external parameters. The measurement also provides an estimate of the $B_s^{(*)}\\bar{B}_s^{(*)}$ production cross-section, $\\sigma(e^+e^- \\to B_s^{(*)}\\bar{B}_s^{(*)}) = (53.8 \\pm 1.4 (\\text{stat}) \\pm 4.0 (\\text{syst}) \\pm 3.4 (\\text{ext}))\\,{\\rm pb}$, at the center-of-mass energy $\\sqrt{s} = 10.86\\,{\\rm GeV}$.
Classification / Thesaurus:Belle II
Comment of the Author/Creator:13 pages, 2 figures, submitted to Phys. Rev. D
External Publication Status:published
Document Type:Article
Communicated by:MPI für Physik
Affiliations:MPI für Physik
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