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

Research output: Contribution to journalArticle

42 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)1289-1301
Number of pages13
JournalPhysical Review D
Volume36
Issue number5
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Bebek, C., Berkelman, K., Blucher, E., Cassel, D. G., Copie, T., Desalvo, R., Dewire, J. W., Ehrlich, R., Galik, R. S., Gilchriese, M. G. D., Gittelman, B., Gray, S. W., Halling, A. M., Hartill, D. L., Heltsley, B. K., Holzner, S., Ito, M., Kandaswamy, J., Kowalewski, R., ... Vogel, H. (1987). Exclusive decays and masses of the B mesons. Physical Review D, 36(5), 1289-1301. https://doi.org/10.1103/PhysRevD.36.1289