Charged track multiplicity in B meson decay

G. Brandenburg, A. Ershov, Y. S. Gao, D. Y.J. Kim, R. Wilson, R. M. Hans, E. Johnson, I. Karliner, M. A. Marsh, M. Palmer, C. Plager, C. Sedlack, M. Selen, J. J. Thaler, J. Williams, R. S. Galik, L. Gibbons, B. Gittelman, S. W. Gray, D. L. HartillB. K. Heltsley, P. I. Hopman, C. D. Jones, D. L. Kreinick, T. Lee, Y. Liu, T. O. Meyer, N. B. Mistry, C. R. Ng, E. Nordberg, J. R. Patterson, D. Peterson, D. Riley, J. G. Thayer, P. G. Thies, B. Valant-Spaight, A. Warburton

Research output: Contribution to journalArticlepeer-review


We have used the CLEO II detector to study the multiplicity of charged particles in the decays of B mesons produced at the (Formula presented) resonance. Using a sample of (Formula presented) B meson pairs, we find the mean inclusive charged particle multiplicity to be (Formula presented) for the decay of the pair. This corresponds to a mean multiplicity of (Formula presented) for a single B meson. Using the same data sample, we have also extracted the mean multiplicities in semileptonic and nonleptonic decays. We measure a mean of (Formula presented) charged particles per (Formula presented) decay when both mesons decay semileptonically. When neither B meson decays semileptonically, we measure a mean charged particle multiplicity of (Formula presented) per (Formula presented) pair.

Original languageEnglish (US)
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Issue number7
StatePublished - 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)


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