Exclusive decays and masses of the B mesons

C. Bebek, K. Berkelman, E. Blucher, D. G. Cassel, T. Copie, R. Desalvo, J. W. Dewire, R. Ehrlich, R. S. Galik, M. G.D. Gilchriese, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, S. Holzner, M. Ito, J. Kandaswamy, R. Kowalewski, D. L. KreinickY. Kubota, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, E. Nordberg, M. Ogg, D. Perticone, D. Peterson, M. Pisharody, K. Read, D. Riley, A. Silverman, S. Stone, A. J. Sadoff, P. Avery, D. Besson, L. Garren, T. Bowcock, R. T. Giles, K. Kinoshita, F. M. Pipkin, Richard Wilson, J. Wolinski, D. Xiao, T. Gentile, P. Haas, M. Hempstead, T. Jensen, H. Kagan, R. Kass, S. Behrends, Jan M. Guida, Joan A. Guida, F. Morrow, R. Poling, E. H. Thorndike, P. Tipton, M. S. Alam, N. Katayama, I. J. Kim, C. R. Sun, V. Tanikella, D. Bortoletto, A. Chen, M. Goldberg, R. Holmes, N. Horwitz, A. Jawahery, P. Lubrano, G. C. Moneti, V. Sharma, P. Thoma, S. E. Csorna, M. D. Mestayer, R. S. Panvini, G. B. Word, A. Bean, G. J. Bobbink, I. C. Brock, A. Engler, T. Ferguson, R. W. Kraemer, C. Rippich, H. Vogel

研究成果: 雜誌貢獻期刊論文同行評審

42 引文 斯高帕斯(Scopus)

摘要

We report on the observation of exclusive decays of B mesons to modes containing a D or D*+ and one or two charged pions. From kinematic reconstruction we determine the masses of the neutral and charged B mesons to be 5280.60.82.0 and 5278.60.82.0 MeV, respectively. The mass difference is 2.01.10.3 MeV. Branching ratios for these modes are given. From the charged-particle momentum spectrum in (4S) decay, we find the average branching fraction for B-meson decay into a D or D* plus a charged pion to be (0.810.16)%. We find no signal for exclusive decays which would arise from the bu transition and set upper limits for several such modes.

原文???core.languages.en_GB???
頁(從 - 到)1289-1301
頁數13
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
36
發行號5
DOIs
出版狀態已出版 - 1987

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