Measurement of the branching fraction of B+ → τ+ ντ decays with the semileptonic tagging method and the full Belle data sample

Journal Article

We report a measurement of the branching fraction of B → τ ντ decays using a data sample of 772 × 10 BB 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 B → τ ντ candidate in the recoiling event. We obtain a branching fraction of B(B → τ ν ) = [1.25 ± 0.28(stat.) ± 0.27(syst.)] × 10 . This result is in good agreement with previous measurements and the expectation from calculations based on the Standard Model. + + 6 + − + + + + −4 τ

Duke Authors

Cited Authors

  • Abdesselam, A; Adachi, I; Adamczyk, K; Aihara, H; Al Said, S; Arinstein, K; Arita, Y; Asner, DM; Aso, T; Aulchenko, V; Aushev, T; Ayad, R; Aziz, T; Bahinipati, S; Bakich, AM; Bala, A; Ban, Y; Bansal, V; Barberio, E; Barrett, M; Bartel, W; Bay, A; Bedny, I; Behera, P; Belhorn, M; Belous, K; Bhardwaj, V; Bhuyan, B; Bischofberger, M; Blyth, S; Bobrov, A; Bondar, A; Bonvicini, G; Bookwalter, C; Boulahouache, C; Bozek, A; Bračko, M; Brodzicka, J; Brovchenko, O; Browder, TE; Červenkov, D; Chang, MC; Chang, P; Chao, Y; Chekelian, V; Chen, A; Chen, KF; Chen, P; Cheon, BG; Chilikin, K; Chistov, R; Cho, K; Chobanova, V; Choi, SK; Choi, Y; Cinabro, D; Crnkovic, J; Dalseno, J; Danilov, M; Dingfelder, J; Doležal, Z; Drásal, Z; Drutskoy, A; Dutta, D; Dutta, K; Eidelman, S; Epifanov, D; Esen, S; Farhat, H; Fast, JE; Feindt, M; Ferber, T; Frey, A; Frost, O; Fujikawa, M; Gaur, V; Gabyshev, N; Ganguly, S; Garmash, A; Gillard, R; Giordano, F; Glattauer, R; Goh, YM; Golob, B; Grosse Perdekamp, M; Grzymkowska, O; Guo, H; Haba, J; Hamer, P; Han, YL; Hara, K; Hara, T; Hasegawa, Y; Hasenbusch, J; Hayasaka, K; Hayashii, H; He, XH; Heck, M; Heffernan, D; Heider, M

Published Date

  • January 1, 2014

Published In

  • 8th International Workshop on the Ckm Unitarity Triangle, Ckm 2014

Citation Source

  • Scopus