Evidence for charmed baryons in B-meson decay

M. S. Alam, N. Katayama, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, V. Tanikella, D. Bortoletto, A. Chen, M. Goldberg, R. Holmes, N. Horwitz, A. Jawahery, P. Lubrano, G. C. Moneti, V. Sharma, I. P.J. Shipsey, P. Thoma, S. E. Csorna, M. D. MestayerR. S. Panvini, G. B. Word, A. Bean, G. J. Bobbink, I. C. Brock, A. Engler, T. Ferguson, R. W. Kraemer, C. Rippich, H. Vogel, 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. Gittleman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, S. Holzner, J. Kandaswamy, R. Kowalewski, D. L. Kreinick, Y. Kubota, N. B. Mistry, J. Mueller, R. Namjoshi, E. Nordberg, 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, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, 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

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27 Scopus citations

Abstract

We report on new measurements of the and proton branching fractions and momentum spectra from B-meson decay. The large-to-p ratio, the absence of BX, and the presence of -lepton charge correlations suggest that charmed baryons are produced in B decay. Under the assumption that all of the observed baryons are associated with charmed-baryon production, we find a B to charmed-baryon branching fraction of (7.42.9)%.

Original languageEnglish (US)
Pages (from-to)22-25
Number of pages4
JournalPhysical Review Letters
Volume59
Issue number1
DOIs
StatePublished - Jan 1 1987

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Alam, M. S., Katayama, N., Kim, I. J., Li, W. C., Lou, X. C., Sun, C. R., Tanikella, V., Bortoletto, D., Chen, A., Goldberg, M., Holmes, R., Horwitz, N., Jawahery, A., Lubrano, P., Moneti, G. C., Sharma, V., Shipsey, I. P. J., Thoma, P., Csorna, S. E., ... Tipton, P. (1987). Evidence for charmed baryons in B-meson decay. Physical Review Letters, 59(1), 22-25. https://doi.org/10.1103/PhysRevLett.59.22