Measurement of the D0, D+ and Ds+ meson lifetimes at √s = 10.58 GeV

S. E. Csorna, M. D. Mestayer, R. 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. EhrlichR. S. Galik, M. G.D. Gilchriese, B. Gittelman, S. W. Gray, A. M. Halling, D. L. Hartill, B. K. Heltsley, S. Holzner, M. Ito, J. Kandaswamy, R. Kowalewski, D. L. Kreinick, Y. Kubota, N. B. Mistry, J. Mueller, R. Namjoshi, E. Nordberg, M. Ogg, D. Perticone, D. Peterson, M. Pisharody, K. Read, D. Riley, A. Silverman, S. Stone, Xia Yi, A. J. Sadoff, P. Avery, D. Besson, R. Poling

Research output: Contribution to journalArticlepeer-review

7 Scopus citations


We have measured the lifetimes of the D0, D+ and Ds+ mesons with data from the CLEO detector. We find τD0 = (5.0 ± 0.7 ± 0.4) × 10-13s, τD+ = (11.4 ± 1.6 ± 0.7) × 10-13s and τDs+ = (4.7 ± 2.2 ± 0.5) × 10-13s, giving lifetime ratios τD+D0 = 2.3 ± 0.5 and τDs+D0 = 0.9 ± 0.5.

Original languageEnglish (US)
Pages (from-to)318-322
Number of pages5
JournalPhysics Letters B
Issue number3
StatePublished - Jun 11 1987

Bibliographical note

Funding Information:
We gratefully acknowledget he efforts of the CESR group who made this work possible. Thanks for support are due to the Mary Ingraham Bunting Institute of Radcliffe College from K.K., and to the Department of Energy OJI program from H.K. and R. Kass. This work was funded by both the National Science Foundation and the US Department of Energy.


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