Semi-inclusive studies of semileptonic Bs decays at Belle

C. Oswald, P. Urquijo, J. Dingfelder, A. Abdesselam, I. Adachi, H. Aihara, S. Al Said, D. M. Asner, T. Aushev, R. Ayad, V. Babu, I. Badhrees, A. M. Bakich, V. Bhardwaj, A. Bobrov, G. Bonvicini, A. Bozek, M. Bračko, T. E. Browder, D. ČervenkovM. C. Chang, V. Chekelian, A. Chen, B. G. Cheon, K. Chilikin, K. Cho, V. Chobanova, Y. Choi, D. Cinabro, J. Dalseno, Z. DoleŽal, Z. Drásal, A. Drutskoy, D. Dutta, S. Eidelman, H. Farhat, J. E. Fast, T. Ferber, O. Frost, B. G. Fulsom, V. Gaur, N. Gabyshev, S. Ganguly, A. Garmash, D. Getzkow, R. Gillard, R. Glattauer, Y. M. Goh, P. Goldenzweig, B. Golob, O. Grzymkowska, T. Hara, J. Hasenbusch, K. Hayasaka, H. Hayashii, X. H. He, W. S. Hou, M. Huschle, H. J. Hyun, T. Iijima, A. Ishikawa, R. Itoh, Y. Iwasaki, I. Jaegle, T. Julius, K. H. Kang, P. Kapusta, E. Kato, T. Kawasaki, C. Kiesling, D. Y. Kim, J. B. Kim, J. H. Kim, K. T. Kim, M. J. Kim, S. H. Kim, Y. J. Kim, K. Kinoshita, B. R. Ko, P. Kodyš, S. Korpar, P. KriŽan, P. Krokovny, T. Kuhr, T. Kumita, Y. J. Kwon, J. S. Lange, D. H. Lee, I. S. Lee, Y. Li, L. Li Gioi, J. Libby, D. Liventsev, P. Lukin, D. Matvienko, H. Miyata, R. Mizuk, G. B. Mohanty, A. Moll, H. K. Moon, E. Nakano, M. Nakao, H. Nakazawa, T. Nanut, Z. Natkaniec, M. Nayak, S. Nishida, T. Nozaki, S. Okuno, P. Pakhlov, G. Pakhlova, C. W. Park, H. Park, T. K. Pedlar, L. Pesántez, R. Pestotnik, M. Petrič, L. E. Piilonen, C. Pulvermacher, E. RibeŽl, M. Ritter, A. Rostomyan, M. Rozanska, S. Ryu, Y. Sakai, S. Sandilya, L. Santelj, T. Sanuki, Y. Sato, V. Savinov, O. Schneider, G. Schnell, C. Schwanda, D. Semmler, K. Senyo, O. Seon, M. E. Sevior, M. Shapkin, V. Shebalin, C. P. Shen, T. A. Shibata, J. G. Shiu, A. Sibidanov, F. Simon, Y. S. Sohn, E. Solovieva, S. Stanič, M. Starič, J. Stypula, M. Sumihama, T. Sumiyoshi, U. Tamponi, Y. Teramoto, K. Trabelsi, M. Uchida, Y. Unno, S. Uno, Y. Usov, C. Van Hulse, P. Vanhoefer, G. Varner, A. Vinokurova, V. Vorobyev, A. Vossen, M. N. Wagner, C. H. Wang, M. Z. Wang, P. Wang, X. L. Wang, Y. Watanabe, K. M. Williams, E. Won, H. Yamamoto, S. Yashchenko, Y. Yook, Z. P. Zhang, V. Zhilich, V. Zhulanov, A. Zupanc

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We present an analysis of the semi-inclusive decays Bs→Ds-Xℓ+ν and Bs→Ds∗-Xℓ+ν, where X denotes a final state that may consist of additional hadrons or photons and ℓ is an electron or muon. The studied Bs decays are contained in the 121.4fb-1 Υ(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 B(Bs→Ds-Xℓ+ν)=[8.2±0.2(stat)±0.6(syst)±1.4(ext)]% and B(Bs→Ds∗-Xℓ+ν)=[5.4±0.4(stat)±0.4(syst)±0.9(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 Bs(∗)B¯s(∗) production cross section, σ(e+e-→Bs(∗)B¯s(∗))=[53.8±1.4(stat)±4.0(syst)±3.4(ext)]pb, at the center-of-mass energy s=10.86GeV.

Original languageEnglish
Article number072013
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume92
Issue number7
DOIs
Publication statusPublished - 2015 Oct 22

    Fingerprint

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

Cite this

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., ... Zupanc, A. (2015). Semi-inclusive studies of semileptonic Bs decays at Belle. Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(7), [072013]. https://doi.org/10.1103/PhysRevD.92.072013