Amplitude analysis of D0→K+K-π+π-

M Artuso,S Blusk, R Mountain,T Skwarnicki,Scot J Stone,L M Zhang, T Gershon,G Bonvicini,D Cinabro,A Lincoln,M J Smith,Ping Zhou,Junjie Zhu,P Naik, J Rademacker,D M Asner,K W Edwards, K Randrianarivony,G Tatishvili,R A Briere,H Vogel,P U E Onyisi,Jonathan L Rosner, J P Alexander,D G Cassel,Swadesh K Das,R Ehrlich, L Gibbons,S W Gray,D L Hartill,B K Heltsley,D L Kreinick,V E Kuznetsov,J R Patterson,D E Peterson,D Riley,A Ryd,A J Sadoff, Xin Shi,W M Sun, J Yelton,P Rubin,N Lowrey,S Mehrabyan,M Selen,J Wiss,J Libby, M Kornicer,R E Mitchell, D Besson,T K Pedlar,D Croninhennessy,J Hietala,S Dobbs,Z Metreveli,K K Seth,A Tomaradze,T Xiao,Linda M Martin,A R Powell,P Spradlin, G Wilkinson, J Y Ge,D H Miller, I P J Shipsey,B Xin,G S Adams,J Napolitano,K M Ecklund,J Insler,H Muramatsu,C S Park,L J Pearson,E H Thorndike,S Ricciardi,Chris D Thomas

PHYSICAL REVIEW D（2012）

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摘要

The first flavor-tagged amplitude analysis of the decay D-0 to the self- conjugate final state K+ K- pi(+) pi(-) is presented. Approximately 3000 signal decays are selected from data acquired by the CLEO II.V, CLEO III, and CLEO-c detectors. The three most significant amplitudes, which contribute to the model that best fits the data, are phi rho(0), K-1(1270)K-+/-(-/+), and nonresonant K+ K- pi(+) pi(-). Separate amplitude analyses of D-0 and (D) over bar (0) candidates indicate no CP violation among the amplitudes at the level of 5% to 30% depending on the mode. In addition, the sensitivity to the CP-violating parameter gamma/phi(3) from a sample of 2000 B+ -> (D) over tilde (0)(K+ K- pi(+) pi(-))K+ decays, where (D) over tilde is a D-0 or (D) over bar (0), collected at LHCb or a future flavor facility, is estimated to be (11.3 +/- 0.3)degrees using the favored model.

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gamma,cp violation

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