B0B0 mixing at the (4S)

M. Artuso, C. Bebek, K. Berkelman, E. Blucher, J. Byrd, D. G. Cassel, E. Cheu, D. M. Coffman, T. Copie, G. Crawford, R. Desalvo, J. W. Dewire, P. S. Drell, R. Ehrlich, R. S. Galik, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. HeltsleyJ. Kandaswamy, R. Kowalewski, D. L. Kreinick, Y. Kubota, J. D. Lewis, N. B. Mistry, J. Mueller, R. Namjoshi, S. Nandi, E. Nordberg, C. Ogrady, D. Peterson, M. Pisharody, D. Riley, M. Sapper, A. Silverman, S. Stone, H. Worden, M. Worris, A. J. Sadoff, P. Avery, D. Besson, L. Garren, J. Yelton, T. Bowcock, K. Kinoshita, F. M. Pipkin, M. Procario, Richard Wilson, J. Wolinski, D. Xiao, P. Baringer, P. Haas, Ha Lam, A. Jawahery, C. H. Park, D. Perticone, R. Poling, R. Fulton, M. Hempstead, T. Jensen, D. R. Johnson, H. Kagan, R. Kass, F. Morrow, J. Whitmore, W. Y. Chen, R. L. McIlwain, D. H. Miller, C. R. Ng, E. I. Shibata, W. M. Yao, E. H. Thorndike, M. S. Alam, N. Katayama, I. J. Kim, W. C. Li, X. C. Lou, C. R. Sun, D. Bortoletto, M. Goldberg, N. Horwitz, P. Lubrano, M. D. Mestayer, G. C. Moneti, V. Sharma, I. P.J. Shipsey, T. Skwarnicki, S. E. Csorna, T. Letson, I. C. Brock, T. Ferguson

Research output: Contribution to journalArticle

124 Scopus citations

Abstract

We have measured B0B0 mixing by observing like-sign dilepton events in (4S) decay. Assuming that the semileptonic branching fractions of the charged and neutral B mesons are equal and that the (4S) decays to B+B- 55% of the time and to B0B0 45% of the time, we measure the mixing parameter r to be 0.190.060.06, where the first error is statistical and the second is systematic.

Original languageEnglish (US)
Pages (from-to)2233-2236
Number of pages4
JournalPhysical Review Letters
Volume62
Issue number19
DOIs
StatePublished - Jan 1 1989

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Artuso, M., Bebek, C., Berkelman, K., Blucher, E., Byrd, J., Cassel, D. G., Cheu, E., Coffman, D. M., Copie, T., Crawford, G., Desalvo, R., Dewire, J. W., Drell, P. S., Ehrlich, R., Galik, R. S., Gittelman, B., Gray, S. W., Halling, A. M., Hartill, D. L., ... Ferguson, T. (1989). B0B0 mixing at the (4S). Physical Review Letters, 62(19), 2233-2236. https://doi.org/10.1103/PhysRevLett.62.2233