Measurement of the branching fraction of B+ →τ+ντ decays with the semileptonic tagging method

Published

Journal Article

© 2015 American Physical Society. © 2015 American Physical Society. We report a measurement of the branching fraction of B+→τ+ντ decays using a data sample of 772×106BB¯ pairs, collected at the (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.

Full Text

Duke Authors

Cited Authors

  • Kronenbitter, B; Heck, M; Goldenzweig, P; Kuhr, T; Abdesselam, A; Adachi, I; Aihara, H; Al Said, S; Arinstein, K; Asner, DM; Aushev, T; Ayad, R; Aziz, T; Bakich, AM; Bansal, V; Barberio, E; Bhardwaj, V; Bondar, A; Bonvicini, G; Bozek, A; Bračko, M; Browder, TE; Červenkov, D; Chekelian, V; Chen, A; Cheon, BG; Chilikin, K; Chistov, R; Cho, K; Chobanova, V; Choi, Y; Cinabro, D; Dalseno, J; Danilov, M; Dingfelder, J; DoleŽal, Z; Drásal, Z; Drutskoy, A; Dutta, D; Eidelman, S; Epifanov, D; Farhat, H; Fast, JE; Ferber, T; Frost, O; Fulsom, BG; Gaur, V; Gabyshev, N; Garmash, A; Getzkow, D; Gillard, R; Glattauer, R; Golob, B; Grygier, J; Hayasaka, K; Hayashii, H; He, XH; Heider, M; Heller, A; Horiguchi, T; Huschle, M; Iijima, T; Inami, K; Ishikawa, A; Itoh, R; Iwasaki, Y; Jaegle, I; Joo, KK; Julius, T; Kang, KH; Kato, E; Kim, DY; Kim, HJ; Kim, JB; Kim, JH; Kim, KT; Kim, MJ; Kim, SH; Kim, YJ; Kinoshita, K; Ko, BR; Kodyš, P; KriŽan, P; Krokovny, P; Kuzmin, A; Kwon, YJ; Lange, JS; Lee, DH; Lee, IS; Lewis, P; Li Gioi, L; Libby, J; Liventsev, D; Lukin, P; Matvienko, D; Miyata, H; Mizuk, R; Mohanty, GB; Mohanty, S; Moll, A

Published Date

  • September 17, 2015

Published In

Volume / Issue

  • 92 / 5

Electronic International Standard Serial Number (EISSN)

  • 1550-2368

International Standard Serial Number (ISSN)

  • 1550-7998

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.92.051102

Citation Source

  • Scopus