Precise measurement of B meson lifetimes with hadronic decay final states

• Published in: Physical review letters 2002-04, Vol.88 (17), p.171801-171801, Article 171801
• Main Authors: Abe, K, Abe, R, Abe, T, Adachi, I, Ahn, Byoung Sup, Aihara, H, Akatsu, M, Asano, Y, Aso, T, Aushev, T, Bakich, A M, Ban, Y, Banas, E, Behari, S, Behera, P K, Bondar, A, Bozek, A, Brodzicka, J, Browder, T E, Casey, B C K, Chang, P, Chao, Y, Cheon, B G, Chistov, R, Choi, S-K, Choi, Y, Dong, L Y, Dragic, J, Drutskoy, A, Eidelman, S, Eiges, V, Enari, Y, Everton, C W, Fang, F, Fujii, H, Fukunaga, C, Fukushima, M, Gabyshev, N, Garmash, A, Gershon, T, Gordon, A, Guler, H, Guo, R, Haba, J, Hamasaki, H, Hanagaki, K, Handa, F, Hara, K, Hara, T, Hastings, N C, Hayashii, H, Hazumi, M, Heenan, E M, Higuchi, I, Higuchi, T, Hokuue, T, Hoshi, Y, Hou, S R, Hou, W-S, Hsu, S-C, Huang, H-C, Igaki, T, Igarashi, Y, Iijima, T, Ikeda, H, Inami, K, Ishikawa, A, Ishino, H, Itoh, R, Iwasaki, H, Iwasaki, Y, Jang, H K, Kang, J H, Kang, J S, Kapusta, P, Katayama, N, Kawai, H, Kawakami, Y, Kawamura, N, Kawasaki, T, Kichimi, H, Kim, D W, Kim, Heejong, Kim, H J, Kim, H O, Kim, Hyunwoo, Kim, S K, Kim, T H, Kinoshita, K, Konishi, H, Korpar, S, Krizan, P, Krokovny, P, Kulasiri, R, Kumar, S, Kuzmin, A, Kwon, Y-J, Lange, J S
• Format: Article
• Language: English
• ISSN: 0031-9007; 1079-7114
• DOI: 10.1103/PhysRevLett.88.171801

The lifetimes of the B(0) and B- mesons are extracted from 29.1 fb(-1) of data collected with the Belle detector at the KEK B factory. A fit to the decay length differences of neutral and charged B meson pairs, measured in events where one of the B mesons is fully reconstructed in several hadronic modes, yields tau(B(0)) = 1.554+/-0.030(stat)+/-0.019(syst) ps, tau(B-) = 1.695+/-0.026(stat)+/-0.015(syst) ps, and tau(B-)/tau(B(0)) = 1.091+/-0.023(stat)+/-0.014(syst).