Measurement Of Charm Meson Lifetimes

G. Bonvicini,D. Cinabro,R. Greene,L. P. Perera,G. J. Zhou,S. Chan,G. Eigen, E. Lipeles,M. Schmidtler,A. Shapiro,W. M. Sun,J. Urheim,A. J. Weinstein, F. Würthwein,D. E. Jaffe,G. Masek,H. P. Paar,E. M. Potter, S. Prell,V. Sharma,D. M. Asner,A. Eppich,J. Gronberg,T. S. Hill,C. M. Korte,D. J. Lange,R. J. Morrison,H. N. Nelson,T. K. Nelson,D. Roberts,H. Tajima,B. H. Behrens,W. T. Ford,A. Gritsan,H. Krieg,J. Roy,J. Smith, J. Alexander,R. Baker,C. Bebek,B. Berger,K. Berkelman, V. Boisvert,D. Cassel,D. Crowcroft,M. Dickson,S. von Dombrowski, P. Drell,D. Dumas,K. Ecklund,R. Ehrlich,A. Foland,P. Gaidarev, L. Gibbons,B. Gittelman, S. Gray,D. Hartill,B. Heltsley,S. Henderson,P. Hopman,N. Katayama,D. Kreinick,T. Lee, Y. Liu,T. Meyer,N. Mistry,C. Ng,E. Nordberg,M. Ogg,J. Patterson, D. Peterson, D. Riley, A. Soffer,J. Thayer,P. Thies,B. Valant-Spaight,A. Warburton,C. Ward,M. Athanas, P. Avery,C. Jones,M. Lohner,C. Prescott,A. Rubiera, J. Yelton, J. Zheng, G. Brandenburg,R. Briere, A. Ershov, Y. Gao,D. Kim,R. Wilson,T. Browder, Y. Li,J. Rodriguez, H. Yamamoto,T. Bergfeld,B. Eisenstein, J. Ernst,G. Gladding,G. Gollin,R. Hans,E. Johnson,I. Karliner,M. Marsh,M. Palmer,C. Plager,C. Sedlack,M. Selen,J. Thaler,J. Williams, K. Edwards,A. Bellerive,R. Janicek,P. Patel,A. Sadoff,R. Ammar, P. Baringer,A. Bean, D. Besson,D. Coppage,R. Davis,S. Kotov,I. Kravchenko,N. Kwak,L. Zhou,S. Anderson,Y. Kubota, S. Lee,R. Mahapatra,J. O'Neill, R. Poling,T. Riehle,A. Smith,M. Alam,S. Athar,Z. Ling,A. Mahmood,S. Timm,F. Wappler, A. Anastassov,J. Duboscq, K. Gan, C. Gwon,T. Hart,K. Honscheid,H. Kagan, R. Kass,J. Lee,J. Lorenc,H. Schwarthoff, A. Wolf,M. Zoeller,S. Richichi, H. Severini, P. Skubic, A. Undrus,M. Bishai, S. Chen,J. Fast,J. Hinson,N. Menon,D. Miller,E. Shibata,I. Shipsey,S. Glenn,Y. Kwon,A. Lyon,E. Thorndike,C. Jessop,K. Lingel,H. Marsiske,M. Perl, V. Savinov,D. Ugolini,X. Zhou,T. Coan,V. Fadeyev, I. Korolkov, Y. Maravin,I. Narsky, R. Stroynowski, J. Ye,T. Wlodek,M. Artuso,S. Ayad,E. Dambasuren,S. Kopp, G. Majumder,G. Moneti,R. Mountain,S. Schuh, T. Skwarnicki,S. Stone,A. Titov,G. Viehhauser, J. Wang, S. Csorna,K. McLean,S. Marka, Z. Xu,R. Godang,K. Kinoshita,I. Lai,P. Pomianowski,S. Schrenk

PHYSICAL REVIEW LETTERS（1999）

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摘要

We report measurements of the D-0, D-,(+) and D-s(+) meson lifetimes using 3.7 fb(-1) of e(+)e(-) annihilation data collected near the Y(4S) resonance with the CLEO detector. The measured lifetimes of the D-0, D+, and D-s(+) mesons are 408.5 +/- 4.1(-3.4)(+3.5) fs, 1033.6 +/- 22.1(-12.7)(+9.9) fs, and 486.3 +/- 15.0(-5.1)(+4.9) 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-s(+) and D-0 lifetimes is 1.19 +/- 0.04. [S0031-9007(99)09313-8].

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关键词

systematic error,data collection,elementary particles

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