Time-dependent CP-violating asymmetry in B0→ρ0γ decays
Y. Ushiroda,K. Sumisawa,N. Taniguchi,I. Adachi,Hiroaki Aihara,K. Arinstein,T. Aushev,S. Bahinipati,A. M. Bakich,Vladislav Balagura,E. L. Barberio,K. Belous,U. Bitenc,A. Bondar,A. Bozek,M. Bračko,T. E. Browder,P. Chang,Y. Chao,A. Chen,W. T. Chen,B. G. Cheon,R. Chistov,I. S. Cho,Y. Choi,J. Dalseno,M. Dash,S. Eidelman,D. Epifanov,N. Gabyshev,B. Golob,H. Ha,J. Haba,Kazuhiko Hara,T. Hara,K. Hayasaka,Masashi Hazumi,D. Heffernan,T. Hokuue,Y. Hoshi,W. S. Hou,H. J. Hyun,K. Inami,A. Ishikawa,Hirokazu Ishino,R. Itoh,Y. Iwasaki,D. H. Kah,J. H. Kang, H. Kawai,T. Kawasaki,H. Kichimi, Y. J. Kim,K. Kinoshita,S. Korpar,P. Križan,P. Krokovny, Rakesh Kumar,C. C. Kuo,A.S. Kuzmin,Y. J. Kwon,M. J. Lee,S. E. Lee,T. Lesiak,S. W. Lin,D. Liventsev,F. Mandl,S. McOnie,Tatiana Medvedeva,K. Miyabayashi, H. Miyake,H. Miyata,Y. Miyazaki,R. Mizuk,D. Mohapatra,G. R. Moloney,Yasushi Nagasaka,M. Nakao,H. Nakazawa,S. Nishida,O. Nitoh,S. Noguchi,T. Nozaki,S. Ogawa,T. Ohshima,S. Okuno,S. L. Olsen,P. Pakhlov,G. Pakhlova,C. W. Park, H. Park,L. S. Peak,L. E. Piilonen,H. Sahoo,Y. Sakai,O. Schneider,J. Schümann,A. J. Schwartz,K. Senyo,M. E. Sevior Physical Review Letters（2008）
摘要
We report the first measurement of CP-violation parameters in B0→ρ0γ decays based on a data sample of 657×106BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the time-dependent and direct CP-violating parameters, Sρ0γ=-0.83±0.65(stat)±0.18(syst) and Aρ0γ=-0.44±0.49(stat)±0.14(syst), respectively. © 2008 The American Physical Society.
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display=inline><mmlmsup><mmlmi>b</mmlmi><mmlmn>0</mmlmn></mmlmsup><mmlmo>→</mmlmo><mmlmsup><mmlmi>ρ</mmlmi><mmlmn>0</mmlmn></mmlmsup><mmlmi>γ</mmlmi></mmlmath>decays,time-dependent<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml,asymmetry
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