Evidence For The Decay D-0 -> K+Pi(-)Pi(+)Pi(-)

S. Dytman, V. Savinov,S. Chen,J. Hinson,J. Lee,D. Miller, E. Shibata, I. Shipsey, V. Pavlunin,D. Cronin-Hennessy,A. Lyon,W. Park, E. Thorndike,T. Coan, Y. Gao,F. Liu, Y. Maravin,I. Narsky, R. Stroynowski,J. Ye,M. Artuso, C. Boulahouache,K. Bukin,E. Dambasuren, G. Majumder,R. Mountain,T. Skwarnicki,S. Stone,J. Wang,H. Zhao,S. Kopp,M. Kostin,A. Mahmood, S. Csorna,I. Danko,K. McLean,Z. Xu,G. Bonvicini,D. Cinabro, M. Dubrovin,S. McGee,A. Bornheim, E. Lipeles,S. Pappas,A. Shapiro, W. Sun,A. Weinstein,R. Mahapatra,G. Masek, H. Paar,R. Morrison, H. Nelson, R. Briere,G. Chen,T. Ferguson,H. Vogel, J. Alexander,C. Bebek,K. Berkelman,F. Blanc, V. Boisvert,D. Cassel, P. Drell,J. Duboscq,K. Ecklund,R. Ehrlich, L. Gibbons,B. Gittelman, S. Gray,D. Hartill, B. Heltsley,L. Hsu,C. Jones,J. Kandaswamy,D. Kreinick, M. Lohner,A. Magerkurth,H. Mahlke-Krüger,T. Meyer,N. Mistry, E. Nordberg,M. Palmer,J. Patterson, D. Peterson,J. Pivarski,D. Riley,H. Schwarthoff,J. Thayer,D. Urner, B. Valant-Spaight,G. Viehhauser,A. Warburton,M. Weinberger,S. Athar, P. Avery, C. Prescott,H. Stoeck, J. Yelton, G. Brandenburg, A. Ershov,D. Kim,R. Wilson,K. Benslama,B. Eisenstein, J. Ernst,G. Gladding, G. Gollin,R. Hans, I. Karliner,N. Lowrey,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, 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

PHYSICAL REVIEW D（2001）

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摘要

We present a search for the "wrong-sign" decay D0---> K+ pi (-) pi (+) pi (-) using 9 fb(-1) of e(+)e(-) collisions on and just below the Y(4S) resonance. This decay can occur either through a doubly Cabibbo-buppressed process or through mixing to a (D) over bar (0) followed by a Cabibbo-favored process. Our result for the time-integrated wrong-sign rate relative to the decay D-0-->K- pi (+) pi (-) pi (+) is (0.0041(-0.0011)(+0.0012)(stat)+/-0.0004(syst))x(1.07 +/-0.10)(phase space). which has a statistical significance of 3.9 standard deviations.

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关键词

standard deviation,phase space,statistical significance

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