Semileptonic decays of B mesons

K. Chadwick, J. Chauveau, P. Ganci, T. Gentile, Joan A. Guida, R. Kass, A. C. Melissinos, S. L. Olsen, R. Poling, C. Rosenfeld, G. Rucinski, E. H. Thorndike, J. Green, J. J. Mueller, F. Sannes, P. Skubic, A. Snyder, R. Stone, A. Brody, A. ChenM. Goldberg, N. Horwitz, H. Kooy, G. C. Moneti, P. Pistilli, M. S. Alam, S. E. Csorna, A. Fridman, R. Hicks, R. S. Panvini, D. Andrews, P. Avery, R. Cabenda, D. G. Cassel, J. S. Dewire, R. Ehrlich, T. Ferguson, M. G.D. Gilchriese, B. Gittelman, D. L. Hartill, D. Herrup, M. Herzlinger, J. Kandaswamy, D. L. Kreinick, N. B. Mistry, F. Morrow, E. Nordberg, R. Perchonok, R. Plunkett, A. Silverman, P. C. Stein, S. Stone, D. Weber, R. Wilcke, C. Bebek, J. Haggerty, M. Hempstead, J. M. Izen, W. A. Loomis, W. W. MacKay, F. M. Pipkin, J. Rohlf, W. Tanenbaum, Richard Wilson, A. J. Sadoff, H. Kagan

研究成果: 雜誌貢獻期刊論文同行評審

39 引文 斯高帕斯(Scopus)

摘要

We have studied the production of B mesons in e+e- annihilations and present new measurements of the semileptonic branching fractions for B-meson decay. We find B(B=eX)=0.127±0.017±0.013 and B(B=X)=0.122±0.017±0.031, where the errors are statistical and systematic, respectively. The observed lepton momentum spectra from B decays are presented. From these spectra we find the mean hadronic mass (MX) recoiling against the detected lepton to be MX=2.2±0.2 GeV/c2. We have also observed an enhancement in the lepton yield from the continuum above BB» threshold. This enhancement is interpreted as continuum B production and is consistent with what is expected from the naive quark model.

原文???core.languages.en_GB???
頁(從 - 到)475-485
頁數11
期刊Physical Review D - Particles, Fields, Gravitation and Cosmology
27
發行號3
DOIs
出版狀態已出版 - 1983

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