Measurement of the Λc+ lifetime

P. L. Frabetti, H. W.K. Cheung, J. P. Cumalat, C. Dallapiccola, J. F. Ginkel, S. V. Greene, W. E. Johns, M. S. Nehring, J. N. Butler, S. Cihangir, I. Gaines, L. Garren, P. H. Garbincius, S. A. Gourlay, D. J. Harding, P. Kasper, A. Kreymer, P. Lebrun, S. Shukla, S. BiancoF. L. Fabbri, S. Sarwar, A. Zallo, R. Culbertson, R. W. Gardner, R. Greene, J. Wiss, G. Alimonti, G. Bellini, B. Caccianiga, L. Cinquini, M. Di Corato, M. Giammarchi, P. Inzani, F. Leveraro, S. Malvezzi, D. Menasce, E. Meroni, L. Moroni, D. Pedrini, L. Perasso, A. Sala, S. Sala, D. Toretta, M. Vittone, D. Buchholz, D. Claes, B. Gobbi, B. O'Reilly, J. M. Bishop, N. M. Cason, C. J. Kennedy, G. N. Kim, T. F. Lin, E. J. Mannel, D. L. Puseljic, R. C. Ruchti, W. D. Shephard, J. A. Swiatek, Z. Y. Wu, V. Arena, G. Boca, C. Castoldi, R. Diaferia, G. Gianini, S. P. Ratti, C. Riccardi, P. Vitulo, A. Lopez, G. P. Grim, V. S. Paolone, P. M. Yager, J. R. Wilson, P. D. Sheldon, F. Davenport, J. F. Filasetta, G. R. Blackett, M. Pisharody, T. Handler, B. G. Cheon, J. S. Kang, K. Y. Kim

Research output: Contribution to journalArticle

Abstract

A precise measurement of the Λc+ lifetime using approximately 1340 fully reconstructed Λc+→pK-π+ and charge conjugate decays is presented. The data were accumulated by the Fermilab high energy photoproduction experiment E687. The lifetime of the Λc+ is measured to be 0.215±0.016±0.008 ps.

Original languageEnglish (US)
Pages (from-to)1755-1758
Number of pages4
JournalPhysical review letters
Volume70
Issue number12
DOIs
StatePublished - 1993

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Frabetti, P. L., Cheung, H. W. K., Cumalat, J. P., Dallapiccola, C., Ginkel, J. F., Greene, S. V., Johns, W. E., Nehring, M. S., Butler, J. N., Cihangir, S., Gaines, I., Garren, L., Garbincius, P. H., Gourlay, S. A., Harding, D. J., Kasper, P., Kreymer, A., Lebrun, P., Shukla, S., ... Kim, K. Y. (1993). Measurement of the Λc+ lifetime. Physical review letters, 70(12), 1755-1758. https://doi.org/10.1103/PhysRevLett.70.1755