Measurement of the average B- hadron lifetime

D. E. Klem, R. Dubois, C. C. Young, W. B. Atwood, P. H. Baillon, B. C. Barish, G. R. Bonneaud, A. Courau, G. J. Donaldson, M. M. Duro, E. E. Elsen, S. G. Gao, Y. Z. Huang, G. M. Irwin, H. Kichimi, R. Johnson, J. Kirkby, D. E. Koop, J. Ludwig, G. B. MillsA. Ogawa, T. Pal, D. Perret-Gallix, R. Pitthan, D. L. Pollard, C. Y. Prescott, L. Z. Rivkin, L. S. Rochester, W. Ruckstuhl, M. Sakuda, E. J. Siskind, S. Sherman, R. Stroynowski, S. Q. Wang, S. G. Wojcicki, H. Yamamoto, W. G. Yan

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Results are reported from a study of the impact parameters of electrons in hadronic events produced at the PEP e+e- storage ring. Electrons in hadronic events are produced by bottom and charm decay and their impact parameters show hadrons containing bottom quarks to have a lifetime of 1.16-0.34+0.37(stat.) ±0.23 (syst.) psec. This result is used to constrain elements of the Kobayashi-Maskawa mixing matrix.

Original languageEnglish
Pages (from-to)1873-1876
Number of pages4
JournalPhysical Review Letters
Issue number20
Publication statusPublished - Jan 1 1984


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Klem, D. E., Dubois, R., Young, C. C., Atwood, W. B., Baillon, P. H., Barish, B. C., Bonneaud, G. R., Courau, A., Donaldson, G. J., Duro, M. M., Elsen, E. E., Gao, S. G., Huang, Y. Z., Irwin, G. M., Kichimi, H., Johnson, R., Kirkby, J., Koop, D. E., Ludwig, J., ... Yan, W. G. (1984). Measurement of the average B- hadron lifetime. Physical Review Letters, 53(20), 1873-1876.