Charged-particle multiplicities in B-meson decay

Journal Article · Mon Aug 09 00:00:00 EDT 1982 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.49.357· OSTI ID:7062112

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

The charged multiplicity has been measured at the UPSILON(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 letpons 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.

• Research Organization: Vanderbilt University, Nashville, Tennessee 37235
• OSTI ID: 7062112
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 49:6
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
UPSILON-10500 RESONANCES
WEAK HADRONIC DECAY
BEAUTY PARTICLES
CHARGED PARTICLES
MONTE CARLO METHOD
MULTIPLICITY
BOSONS
DECAY
ELEMENTARY PARTICLES
HADRONS
MESON RESONANCES
MESONS
PARTICLE DECAY
POSTULATED PARTICLES
RESONANCE PARTICLES
UPSILON RESONANCES
WEAK PARTICLE DECAY
645102* - High Energy Physics- Particle Interactions & Properties-Experimental- Weak Interactions & Properties