Constraints on the CKM angle γ in B0→D¯0K*0 and B0→D0K*0 from a Dalitz analysis of D0 and D¯0 decays to KSπ+π-

B. Aubert,M. Bona,Y. Karyotakis,J. Lees,V. Poireau, X. Prudent,V. Tisserand,A. Zghiche,J. Tico,E. Grauges,L. Lopez,A. Palano,M. Pappagallo,G. Eigen, B. Stugu, L. Sun,G. Abrams,M. Battaglia,D. Brown,J. Button-Shafer,R. Cahn, R. Jacobsen,J. Kadyk,L. Kerth,Yu. Kolomensky, G. Kukartsev,G. Lynch, I. Osipenkov,M. Ronan, K. Tackmann,T. Tanabe,W. Wenzel, C. Hawkes,N. Soni,A. Watson,H. Koch,T. Schroeder,D. Walker,D. Asgeirsson,T. Cuhadar-Donszelmann,B. Fulsom,C. Hearty,T. Mattison, J. McKenna,M. Barrett,A. Khan,M. Saleem,L. Teodorescu,V. Blinov,A. Bukin,A. Buzykaev, V. Druzhinin,V. Golubev,A. Onuchin,S. Serednyakov,Yu. Skovpen,E. Solodov,K. Todyshev,M. Bondioli,S. Curry, I. Eschrich,D. Kirkby,A. Lankford,P. Lund,M. Mandelkern,E. Martin,D. Stoker, S. Abachi,C. Buchanan,J. Gary,F. Liu,O. Long,B. Shen,G. Vitug,Z. Yasin, L. Zhang, H. Paar, S. Rahatlou,V. Sharma,C. Campagnari, T. Hong, D. Kovalskyi,M. Mazur,J. Richman,T. Beck,A. Eisner,C. Flacco, C. Heusch, J. Kroseberg, W. Lockman,T. Schalk,B. 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PHYSICAL REVIEW D(2009)

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摘要
We present constraints on the angle gamma of the unitarity triangle with a Dalitz analysis of neutral D decays to K-S pi(+)pi(-) from the processes B-0 ->(D)over bar(0)K(*0) ((B)over bar(0)-> D-0(K)over bar (*0)) and B-0 ->(DK*0)-K-0 ((B)over bar(0)->(D)over bar(0)(K)over bar(*0)) with K-*0 -> K+pi(-) ((K)over bar(*0)-> K-pi(+)). Using a sample of 371x10(6) B(B)over bar pairs collected with the BABAR detector at PEP-II, we constrain the angle gamma as a function of r(S), the magnitude of the average ratio between b -> u and b -> c amplitudes.
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