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| 題名: | Measurement of the branching fraction of B+ →τ+ντ decays with the semileptonic tagging method |
| 作者: | 陳鎰鋒;Kronenbitter, B.;Heck, M.;Goldenzweig, P.;Adachi, I.;Aihara, H.;Al Said, S.;Arinstein, K.;Aushev, T.;Ayad, R.;Aziz, T.;Bansal, V.;Bondar, A.;Bozek, A.;Bračko, M.;Chekelian, V.;Cheon, B. G.;Chistov, R.;Choi, Y.;Dingfelder, J.;Drásal, Z.;Drutskoy, A.;Dutta, D.;Fast, J. E.;Fulsom, B. G.;Getzkow, D.;Gillard, R.;Golob, B.;He, X. H.;Heller, A.;Horiguchi, T.;Huschle, M.;Iijima, T.;Ishikawa, A.;Joo, K. K.;Kato, E.;Kim, J. H.;Kim, M. J.;Kim, Y. J.;Kinoshita, K.;Kodyš, P.;Križan, P.;Krokovny, P.;Kuzmin, A.;Lange, J. S.;Li Gioi, L.;Libby, J.;Liventsev, D.;Miyata, H.;Mizuk, R.;Mohanty, S.;Moon, H. K.;Nanut, T.;Natkaniec, Z.;Nayak, M.;Nisar, N. K.;Nishida, S.;Olsen, S. L.;Ostrowicz, W.;Pakhlova, G.;Pedlar, T. K.;Piilonen, L. E.;Pulvermacher, C.;Ribežl, E.;Ritter, M.;Rostomyan, A.;Sakai, Y.;Santelj, L.;Sanuki, T.;Schneider, O.;Schram, M.;Schwanda, C.;Senyo, K.;Seon, O.;Sevior, M. E.;Shebalin, V.;Shiu, J.-G.;Sohn, Y.-S.;Sokolov, A.;Solovieva, E.;Starič, M.;Sumiyoshi, T.;Teramoto, Y.;Trabelsi, K.;Uehara, S.;Uglov, T.;Urquijo, P.;Varner, G.;Vinokurova, A.;Wagner, M. N.;Wang, C. H.;Wang, P.;Watanabe, Y.;Williams, K. M.;Yashchenko, S.;Yook, Y.;Zhang, Z. P.;Zhilich, V.;Zhulanov, V.;Ziegler, M.;Zupanc, A. |
| 貢獻者: | 理學院物理學系 |
| 日期: | 2015-09-17 |
| 上傳時間: | 2026-04-23 12:12:24 (UTC+8) |
| 出版者: | American Physical Society;United States: American Physical Society (APS) |
| 摘要: | 摘要： We report a measurement of the branching fraction of B + → τ +ντ decays using a data sample of 772 × 106B$\bar{B}$ pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e +e - collider. We reconstruct the accompanying B meson in a semileptonic decay and detect the recoiling B candidate in the decay channel B + → τ +ντ . We obtain a branching fraction of B(B + → τ +ντ ) = [1.25±0.28(stat.)±0.27(syst.)]×10-4 . This result is in good agreement with previous measurements and the expectation from the calculation based on the Standard Model.
出版者： United States: American Physical Society (APS)
出版日期： 2015-09-17
出處： Physical Review. D, Particles, Fields, Gravitation and Cosmology, 2015-09, Vol.92 (5), Article 051102
識別號： ISSN: 1550-7998
識別號： EISSN: 1550-2368
識別號： DOI: 10.1103/PhysRevD.92.051102 |
| 顯示於類別: | [物理學系] 期刊論文
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