Measurement of the time-dependent CP asymmetries in B0-->K(S)(0)rho(0)gamma decays.
作者信息
Li J, Adachi I, Arinstein K, Aushev T, Bakich A M, Balagura V, Bedny I, Bhardwaj V, Bitenc U, Bozek A, Bracko M, Browder T E, Chang P, Chao Y, Chen A, Cheon B G, Chistov R, Choi Y, Dalseno J, Drutskoy A, Eidelman S, Gabyshev N, Ha H, Hara K, Hasegawa Y, Hayashii H, Hazumi M, Heffernan D, Hoshi Y, Hou W-S, Hyun H J, Iijima T, Ishikawa A, Itoh R, Iwasaki M, Iwasaki Y, Joshi N J, Kah D H, Kang J H, Kawai H, Kawasaki T, Kichimi H, Kim Y I, Kim Y J, Kinoshita K, Korpar S, Krizan P, Krokovny P, Kumar R, Kuzmin A, Kyeong S-H, Liu C, Liu Y, Matyja A, McOnie S, Medvedeva T, Miyabayashi K, Miyake H, Miyata H, Moloney G R, Nagasaka Y, Nakao M, Natkaniec Z, Nishida S, Nitoh O, Ogawa S, Ohshima T, Okuno S, Olsen S L, Ozaki H, Pakhlova G, Park C W, Park H, Park H K, Park K S, Peak L S, Pestotnik R, Piilonen L E, Sahoo H, Sakai Y, Schneider O, Schwanda C, Sekiya A, Senyo K, Shapkin M, Shiu J-G, Shwartz B, Sokolov A, Somov A, Stanic S, Staric M, Sumiyoshi T, Tanaka M, Taylor G N, Teramoto Y, Tikhomirov I, Trabelsi K, Tsuboyama T, Uehara S, Uglov T, Unno Y, Uno S, Urquijo P, Ushiroda Y, Usov Y, Varner G, Varvell K E, Vervink K, Vinokurova A, Wang C H, Wang P, Wang X L, Watanabe Y, Won E, Yabsley B D, Yamamoto H, Yamashita Y, Yamauchi M, Zhang Z P, Zhilich V, Zivko T, Zupanc A, Zyukova O
机构信息
University of Hawaii, Honolulu, Hawaii 96822, USA.
出版信息
Phys Rev Lett. 2008 Dec 19;101(25):251601. doi: 10.1103/PhysRevLett.101.251601. Epub 2008 Dec 15.
We report the first measurement of time-dependent CP asymmetry in B(0)-->K(S)(0)rho(0)gamma decays based on 657 x 10(6) BB pairs collected with the Belle detector at the KEKB asymmetric-energy collider. We measure the CP-violating parameter S_{K_{S};{0}rho;{0}gamma}=0.11+/-0.33(stat)-0.09+0.05(syst) from a signal of 212+/-17 events. We also obtain the effective direct CP-violating parameter A{eff}=0.05+/-0.18(stat)+/-0.06(syst) for mK(S)0pi+pi- <1.8 GeV/c(2) and 0.6 GeV/c(2)<m pi+pi- <0.9 GeV/c2.
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