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Time-dependent CP-violating asymmetry in B0-->rho0gamma decays |
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| Authors: | Ushiroda Y Sumisawa K Taniguchi N Adachi I Aihara H Arinstein K Aushev T Bahinipati S Bakich A M Balagura V Barberio E Belous K Bitenc U Bondar A Bozek A Bracko M Browder T E Chang P Chao Y Chen A Chen W T Cheon B G Chistov R Cho I-S Choi Y Dalseno J Dash M Eidelman S Epifanov D Gabyshev N Golob B Ha H Haba J Hara K Hara T Hayasaka K Hazumi M Heffernan D Hokuue T Hoshi Y Hou W-S Hyun H J Inami K Ishikawa A Ishino H Itoh R Iwasaki Y Kah D H Kang J H Kawai H Kawasaki T Kichimi H Kim Y J Kinoshita K Korpar S Krizan P Krokovny P Kumar R Kuo C C Kuzmin A Kwon Y-J Lee M J Lee S E Lesiak T Lin S-W |
| Institution: | High Energy Accelerator Research Organization (KEK), Tsukuba. |
| Abstract: | We report the first measurement of CP-violation parameters in B0-->rho0gamma decays based on a data sample of 657x10(6)BB pairs collected with the Belle detector at the KEKB asymmetric-energy e+e- collider. We obtain the time-dependent and direct CP-violating parameters, Srho0gamma=-0.83+/-0.65(stat)+/-0.18(syst) and Arho0gamma=-0.44+/-0.49(stat)+/-0.14(syst), respectively. |
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