Measurement of CP asymmetries in B(0) -> K(0) pi(0) decays

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题名:	Measurement of CP asymmetries in B(0) -> K(0) pi(0) decays
作者:	Fujikawa,M;Yusa,Y;Dalseno,J;Hazumi,M;Sumisawa,K;Aihara,H;Arinstein,K;Aulchenko,V;Aushev,T;Aziz,T;Bakich,AM;Balagura,V;Barberio,E;Belous,K;Bhardwaj,V;Bischofberger,M;Bondar,A;Bozek,A;Bracko,M;Browder,TE;Chao,Y;Chen,A;Cheon,BG;Choi,SK;Choi,Y;Dungel,W;Eidelman,S;Feindt,M;Goldenzweig,P;Ha,H;Haba,J;Han,BY;Hara,K;Hasegawa,Y;Hayasaka,K;Hayashii,H;Horii,Y;Hoshi,Y;Hou,WS;Hyun,HJ;Iijima,T;Inami,K;Ishino,H;Itoh,R;Iwasaki,M;Iwasaki,Y;Julius,T;Kang,JH;Kawai,H;Kiesling,C;Kim,HO;Kim,SK;Kim,YI;Kim,YJ;Kinoshita,K;Ko,BR;Korpar,S;Kreps,M;Krokovny,P;Kuhr,T;Kumar,R;Kumita,T;Kwon,YJ;Kyeong,SH;Lee,SH;Li,J;Liu,C;Liventsev,D;Louvot,R;McOnie,S;Miyabayashi,K;Miyata,H;Miyazaki,Y;Mori,T;Nagasaka,Y;Nakano,E;Nakao,M;Nishida,S;Nishimura,K;Nitoh,O;Nozaki,T;Ohshima,T;Okuno,S;Olsen,SL;Ozaki,H;Pakhlov,P;Pakhlova,G;Park,CW;Park,H;Park,HK;Pestotnik,R;Piilonen,LE;Rozanska,M;Sakai,Y;Schneider,O;Schwartz,AJ;Senyo,K;Shapkin,M;Shebalin,V;Shen,CP;Shiu,JG;Singh,JB;Sokolov,A;Solovieva,E;Stanic,S;Staric,M;Sumiyoshi,T;Taylor,GN;Teramoto,Y;Trabelsi,K;Uehara,S;Unno,Y;Uno,S;Urquijo,P;Usov,Y;Varner,G;Vervink,K;Vinokurova,A;Wang,CH;Wang,P;Watanabe,Y;Wedd,R;Won,E;Yabsley,BD;Yamashita,Y;Zhang,CC;Zhang,ZP;Zupanc,A
贡献者:	物理學系
日期:	2010
上传时间:	2012-06-11 10:43:42 (UTC+8)
出版者:	國立中央大學
摘要:	We report measurements of CP violation parameters in B(0) -> K(0) pi(0) decays based on a data sample of 657 X 10(6)B (B) over bar pairs collected with the Belle detector at the KEKB e(+)e(-) asymmetric-energy collider. We use B(0) -> K(S)(0)pi(0) decays for both mixing-induced and direct CP violating asymmetry measurements and B(0) -> K(L)(0)pi(0) decays for the direct CP violation measurement. The CP violation parameters obtained are sin2 phi(eff)(1) - +0.67 +/- 0.31(stat) +/- 0.08(syst) and A(K0 pi 0) - +0.14 +/- 0.13(stat) +/- 0.06(syst). The branching fraction of B(0) -> K(0)pi(0) decay is measured to be B(B(0) -> K(0)pi(0)) - (8.7 +/- 0.5(stat) +/- 0.6(syst)) X 10(-6). The observed A(K0 pi 0) value differs by 1.9 standard deviations from the value expected from an isospin sum rule.
關聯:	PHYSICAL REVIEW D
显示于类别:	[物理學系] 期刊論文

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