Measurement of the branching fraction of B →d (∗)πν at Belle using hadronic tagging in fully reconstructed events

Journal Article (Journal Article)

We report a measurement of the branching fractions of the decays B→D(∗)πν. The analysis uses 772×106 BB. pairs produced in e+e-→(4S) data recorded by the Belle experiment at the KEKB asymmetric-energy e+e- collider. The tagging B meson in the decay is fully reconstructed in a hadronic decay mode. On the signal side, we reconstruct the decay B→D(∗)πν(=e,μ). The measured branching fractions are B(B+→D-π++ν)=[4.55±0.27 (stat.)±0.39 (syst.)]×10-3, B(B0→D.0π-+ν)=[4.05±0.36 (stat.)±0.41 (syst.)]×10-3, B(B+→D∗-π++ν)=[6.03±0.43 (stat.)±0.38 (syst.)]×10-3, and B(B0→D.∗0π-+ν)=[6.46±0.53 (stat.)±0.52 (syst.)]×10-3. These are in good agreement with the current world-average values.

Full Text

Duke Authors

Cited Authors

  • Vossen, A; Adachi, I; Adamczyk, K; Aihara, H; Al Said, S; Asner, DM; Aulchenko, V; Aushev, T; Ayad, R; Badhrees, I; Bansal, V; Beleño, C; Bhuyan, B; Bilka, T; Biswal, J; Bondar, A; Bozek, A; Browder, TE; Červenkov, D; Chen, A; Cheon, BG; Chilikin, K; Cho, K; Choi, SK; Choi, Y; Choudhury, S; Cinabro, D; Cunliffe, S; Dash, N; Di Carlo, S; DoleŽal, Z; Eidelman, S; Fast, JE; Ferber, T; Fulsom, BG; Garg, R; Gaur, V; Gabyshev, N; Garmash, A; Gelb, M; Goldenzweig, P; Guido, E; Hara, T; Hartbrich, O; Hayasaka, K; Hayashii, H; Hedges, MT; Hirose, S; Hou, WS; Inami, K; Ishikawa, A; Itoh, R; Iwasaki, M; Iwasaki, Y; Jacobs, WW; Jaegle, I; Jia, S; Jin, Y; Julius, T; Kim, DY; Kim, HJ; Kim, JB; Kim, KT; Kim, SH; Kinoshita, K; Korpar, S; Kotchetkov, D; KriŽan, P; Kroeger, R; Krokovny, P; Kuhr, T; Kulasiri, R; Kumita, T; Kwon, YJ; Lange, JS; Lee, IS; Lee, SC; Li, LK; Li, Y; Li Gioi, L; Libby, J; Liventsev, D; Lubej, M; Masuda, M; Merola, M; Miyabayashi, K; Miyata, H; Mizuk, R; Moon, HK; Mussa, R; Nakano, E; Nakao, M; Nanut, T; Nath, KJ; Nayak, M; Niiyama, M; Nishida, S; Ono, H; Pakhlov, P; Pakhlova, G

Published Date

  • July 1, 2018

Published In

Volume / Issue

  • 98 / 1

Electronic International Standard Serial Number (EISSN)

  • 2470-0029

International Standard Serial Number (ISSN)

  • 2470-0010

Digital Object Identifier (DOI)

  • 10.1103/PhysRevD.98.012005

Citation Source

  • Scopus