Measurement of the branching fraction for the decay Gamma(4S) -> Gamma(1S)pi(+) pi(-)

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题名:	Measurement of the branching fraction for the decay Gamma(4S) -> Gamma(1S)pi(+) pi(-)
作者:	Sokolov,A;Shapkin,M;Aihara,H;Arinstein,K;Aushev,T;Bakich,AM;Barberio,E;Bay,A;Belous,K;Bhardwaj,V;Bondar,A;Bracko,M;Browder,TE;Chang,MC;Chang,P;Chen,A;Chen,KF;Cheon,BG;Chiang,CC;Chistov,R;Cho,IS;Choi,Y;Dash,M;Drutskoy,A;Dungel,W;Eidelman,S;Epifanov,D;Gabyshev,N;Goldenzweig,P;Ha,H;Haba,J;Han,BY;Hayashii,H;Hazumi,M;Horii,Y;Hoshi,Y;Hou,WS;Hsiung,YB;Hyun,HJ;Iijima,T;Inami,K;Ishikawa,A;Ishino,H;Iwasaki,Y;Joshi,NJ;Kah,DH;Kaji,H;Kang,JH;Kawai,H;Kawasaki,T;Kichimi,H;Kim,HJ;Kim,HO;Kim,SK;Kim,YI;Kim,YJ;Kinoshita,K;Ko,BR;Korpar,S;Krizan,P;Krokovny,P;Kuzmin,A;Kwon,YJ;Kyeong,SH;Lange,JS;Lee,MJ;Lee,SE;Lesiak,T;Li,J;Limosani,A;Lin,SW;Liu,Y;Liventsev,D;Louvot,R;Mandl,F;Matyja,A;McOnie,S;Miyata,H;Miyazaki,Y;Mizuk,R;Mori,T;Nagasaka,Y;Nakano,E;Nakao,M;Nishida,S;Nitoh,O;Noguchi,S;Ogawa,S;Ohshima,T;Okuno,S;Ozaki,H;Pakhlov,P;Pakhlova,G;Park,CW;Park,H;Park,HK;Park,KS;Pestotnik,R;Piilonen,LE;Poluektov,A;Sahoo,H;Sakai,Y;Schneider,O;Schwanda,C;Sekiya,A;Senyo,K;Sevior,ME;Shen,CP;Shiu,JG;Shwartz,B;Singh,JB;Stanic,S;Staric,M;Sumiyoshi,T;Tanaka,M;Taylor,GN;Teramoto,Y;Tsuboyama,T;Uehara,S;Uglov,T;Unno,Y;Uno,S;Usov,Y;Varner,G;Varvell,KE;Vervink,K;Vinokurova,A;Wang,CH;Wang,MZ;Wang,P;Wang,XL;Watanabe,Y;Wedd,R;Won,E;Yabsley,BD;Yamashita,Y;Yuan,CZ;Zhang,ZP;Zhilich,V;Zhulanov,V;Zivko,T;Zupanc,A;Zyukova,O
贡献者:	物理研究所
关键词:	BELLE;IDENTIFICATION;KEKB
日期:	2009
上传时间:	2010-07-08 14:00:15 (UTC+8)
出版者:	中央大學
摘要:	We study transitions between Gamma states with the emission of charged pions using 604.6 fb(-1) of data collected with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. The measured product branching fraction is B(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) x B(Gamma(1S) -> mu(+)mu(-)) = (2.11 +/- 0.30(stat) +/- 0.14(sys)) x 10(-6) and the partial decay width is Gamma(Gamma(4S) -> Gamma(1S)pi(+)pi(-)) = 1.75 +/- 0.25(stat) +/- 0.24(sys)) keV.
關聯:	PHYSICAL REVIEW D
显示于类别:	[物理研究所] 期刊論文

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