Charged-Particle multiplicities in B-Meson decay

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

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


The charged multiplicity has been measured at the '(4S) and a value of 5.75±0.1±0.2 has been obtained for the mean charged multiplicity in B-meson decay. Combining this result with the measurement of prompt leptons from B decay, the values 4.1±0.35±0.2 and 6.3±0.2±0. 2 are found for the semileptonic and nonleptonic charged multiplicities, respectively. If b'c dominance is assumed for the weak decay of the B meson, then the semileptonic multiplicity is consistent with the recoil mass determined from the lepton momentum spectrum.

Original languageEnglish (US)
Pages (from-to)357-360
Number of pages4
JournalPhysical Review Letters
Issue number6
StatePublished - 1982
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy


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