Title

Measurement of charm meson lifetimes

Authors

G. Bonvicini, Wayne State University
D. Cinabro, Wayne State University
R. Greene, Wayne State University
L. P. Perera, Wayne State University
G. J. Zhou, Wayne State University
S. Chan, California Institute of Technology
G. Eigen, California Institute of Technology
E. Lipeles, California Institute of Technology
M. Schmidtler, California Institute of Technology
A. Shapiro, California Institute of Technology
W. M. Sun, California Institute of Technology
J. Urheim, California Institute of Technology
A. J. Weinstein, California Institute of Technology
F. Würthwein, California Institute of Technology
D. E. Jaffe, University of California, San Diego
G. Masek, University of California, San Diego
H. P. Paar, University of California, San Diego
E. M. Potter, University of California, San Diego
S. Prell, University of California, San Diego
V. Sharma, University of California, San Diego
D. M. Asner, University of California, Santa Barbara
A. Eppich, University of California, Santa Barbara
J. Gronberg, University of California, Santa Barbara
T. S. Hill, University of California, Santa Barbara
C. M. Korte, University of California, Santa Barbara
D. J. Lange, University of California, Santa Barbara
R. J. Morrison, University of California, Santa Barbara
H. N. Nelson, University of California, Santa Barbara
T. K. Nelson, University of California, Santa Barbara
D. Roberts, University of California, Santa Barbara
H. Tajima, University of California, Santa Barbara
B. H. Behrens, University of Colorado Boulder
W. T. Ford, University of Colorado Boulder

Document Type

Article

Publication Date

1-1-1999

Abstract

We report measurements of the D , D , and D meson lifetimes using 3.7fb of e e annihilation data collected near the ϒ(4S) resonance with the CLEO detector. The measured lifetimes of the D , D , and D mesons are 408.5 ± 4.1 fs, 1033.6 ± 22.1 fs, and 486.3 ± 15.0 fs. The precisions of these lifetimes are comparable to those of the best previous measurements, and the systematic errors are very different. In a single experiment we find that the ratio of the D and D lifetimes is 1.19 ± 0.04. © 1999 The American Physical Society. 0 + + -1 + - 0 + + +3.5 +9.9 +4.9 + 0 s s -3.4 -12.7 -5.1 s

Publication Name

Physical Review Letters

Volume Number

82

First Page

4586

Last Page

4590

Issue Number

23

DOI

10.1103/PhysRevLett.82.4586

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