Rate Measurement Of D0 -> K+Pi-Pi 0 And Constraints On D-0 D(0)Over-Bar Mixing

G. Brandenburg, A. Ershov,D. Kim,R. Wilson,T. Bergfeld,B. Eisenstein,J. Ernst,G. Gladding, G. Gollin,R. Hans,E. Johnson,I. Karliner,M. Marsh, C. Plager,C. Sedlack,M. Selen,J. Thaler,J. Williams, K. Edwards,A. Sadoff,R. Ammar,A. Bean,D. Besson,X. Zhao,S. Anderson,V. Frolov,Y. Kubota,S. Lee,R. Poling,A. Smith,C. Stepaniak,J. Urheim, S. Ahmed,M. Alam,S. Athar, L. Jian,L. Ling,M. Saleem,S. Timm,F. Wappler, A. Anastassov,E. Eckhart,K. Gan, C. Gwon,T. Hart,K. Honscheid,D. Hufnagel,H. Kagan, R. Kass,T. Pedlar,J. Thayer,E. von Toerne,M. Zoeller,S. Richichi, H. Severini, P. Skubic, A. Undrus, V. Savinov, S. Chen,J. Hinson,J. Lee,D. Miller, E. Shibata,I. Shipsey, V. Pavlunin, D. Cronin-Hennessy,A. Lyon,E. Thorndike,T. Coan,V. Fadeyev, Y. Gao, Y. Maravin,I. Narsky, R. Stroynowski,J. Ye, T. Wlodek,M. Artuso,K. Benslama, C. Boulahouache,K. Bukin,E. Dambasuren, G. Majumder,R. Mountain,T. Skwarnicki,S. Stone,J. Wang, A. Wolf,S. Kopp,M. Kostin,A. Mahmood, S. Csorna,I. Danko,K. McLean,Z. Xu, R. Godang,G. Bonvicini,D. Cinabro, M. Dubrovin,S. McGee,G. Zhou, A. Bornheim, E. Lipeles,S. Pappas,A. Shapiro,W. Sun,A. Weinstein,D. Jaffe,R. Mahapatra,G. Masek, H. Paar,D. Asner,A. Eppich,T. Hill,R. Morrison,H. Nelson,R. Briere,G. Chen,T. Ferguson,H. Vogel, J. Alexander,C. Bebek,B. Berger,K. Berkelman,F. Blanc, V. Boisvert,D. Cassel, P. Drell,J. Duboscq,K. Ecklund,R. Ehrlich,P. Gaidarev, L. Gibbons,B. Gittelman, S. Gray,D. Hartill, B. Heltsley,L. Hsu,C. Jones,J. Kandaswamy,D. Kreinick, M. Lohner,A. Magerkurth,T. Meyer, N. Mistry,E. Nordberg,M. Palmer,J. Patterson,D. Peterson,D. Riley,A. Romano,H. Schwarthoff,J. Thayer,D. Urner,B. Valant-Spaight,G. Viehhauser,A. Warburton, P. Avery, C. Prescott,A. Rubiera,H. Stoeck, J. Yelton

PHYSICAL REVIEW LETTERS(2001)

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摘要
We present an observation and time-integrated rate measurement of the decay D-0-->K(+)pi (-)pi (0) produced in 9 fb(-1) of e(+)e(-) collisions near the Y(4S) resonance. The signal is inconsistent with an upward fluctuation of the background by 4.9 standard deviations. We measured the time-integrated rate of D-0-->K(+)pi (-)pi (0) normalized to the rate of (D-0) over bar --> K(+)pi (-)pi (0) to be 0.0043(-0.0010)(+0.0011) (stat) +/- 0.0007 (syst).
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