Search for CP violation in the Dalitz-plot analysis of D±→K+K-π±

P. Rubin,B. I. Eisenstein,I. Karliner,S. Mehrabyan,N. Lowrey,M. Selen,E. J. White,J. Wiss,R. E. Mitchell,M. R. Shepherd,D. Besson,T. K. Pedlar,D. Cronin-Hennessy,K. Y. Gao,J. Hietala,Y. Kubota,T. Klein,B. W. Lang,R. Poling,A. W. Scott,P. Zweber,S. Dobbs,Z. Metreveli,K. K. Seth,B. J. Y. Tan,A. Tomaradze,J. Libby,L. Martin,A. Powell,G. Wilkinson,K. M. Ecklund, V. Savinov,H. Mendez,J. Y. Ge,D. H. Miller,I. P. J. Shipsey,B. Xin,G. S. Adams,D. Hu,J. Napolitano,J. Insler,H. Muramatsu,E. H. Thorndike,F. Yang,M. Artuso,S. Blusk,S. Khalil, J. Li,S. Nisar, K. Randrianarivony,N. Sultana,T. Skwarnicki, J. C. Wang, L. M. Zhang,G. Bonvicini,D. Cinabro,M. Dubrovin,A. Lincoln,P. Naik,J. Rademacker,D. M. Asner, K. W. Edwards,J. Reed,R. A. Briere,G. Tatishvili,H. Vogel,J. L. Rosner,D. G. Cassel,J. E. Duboscq,R. Ehrlich, L. Gibbons,R. Gray,S. W. Gray,D. L. Hartill, B. K. Heltsley,D. Hertz,J. M. Hunt,J. Kandaswamy,D. L. Kreinick,V. E. Kuznetsov,J. Ledoux,H. Mahlke-Kruger,D. Mohapatra,J. R. Patterson,D. Peterson,D. Riley,A. Ryd,A. J. Sadoff,S. Stroiney,W. M. Sun,T. Wilksen,S. B. Athar,R. Patel, J. Yelton,D. Riley,A. Ryd,A. Sadoff,X. Shi,S. Stroiney,W. Sun,T. Wilksen,S. Athar,R. Patel, J. Yelton

PHYSICAL REVIEW D（2008）

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摘要

We report on a search for CP asymmetry in the singly Cabibbo-suppressed decay D+-> K+K-pi(+) using a data sample of 818 pb(-1) accumulated with the CLEO-c detector on the psi(3770) resonance. A Dalitz-plot analysis is used to determine the amplitudes of the intermediate states. We find no evidence for CP violation either in specific two-body amplitudes or integrated over the entire phase space. The CP asymmetry in the latter case is measured to be (-0.03 +/- 0.84 +/- 0.29)%.

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关键词

cp violation,phase space,time reversal

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