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| 題名: | Measurement of Inclusive Radiative B-Meson Decays with a Photon Energy Threshold of 1.7 GeV |
| 作者: | Limosani,A;Aihara,H;Arinstein,K;Aushev,T;Bakich,AM;Balagura,V;Barberio,E;Bay,A;Belous,K;Bischofberger,M;Bondar,A;Bozek,A;Bracko,M;Browder,TE;Chang,P;Chao,Y;Chen,A;Cheon,BG;Choi,Y;Dalseno,J;Danilov,M;Drutskoy,A;Dungel,W;Eidelman,S;Goldenzweig,P;Golob,B;Ha,H;Hayashii,H;Hoshi,Y;Hou,WS;Hyun,HJ;Inami,K;Itoh,R;Iwasaki,Y;Julius,T;Kah,DH;Kim,HO;Kim,SK;Kim,YI;Kim,YJ;Kinoshita,K;Ko,BR;Korpar,S;Kreps,M;Krizan,P;Krokovny,P;Kuhr,T;Kumar,R;Kwon,YJ;Kyeong,SH;Lesiak,T;Li,J;Liu,C;Liventsev,D;Louvot,R;Matyja,A;Miyabayashi,K;Miyata,H;Miyazaki,Y;Mizuk,R;Mori,T;Nakao,M;Nakazawa,H;Nishida,S;Nishimura,K;Nitoh,O;Nozaki,T;Ogawa,S;Ohshima,T;Okuno,S;Ozaki,H;Pakhlova,G;Park,CW;Park,H;Piilonen,LE;Rozanska,M;Sahoo,H;Sakai,Y;Schneider,O;Schumann,J;Schwanda,C;Schwartz,AJ;Senyo,K;Sevior,ME;Shapkin,M;Shebalin,V;Shen,CP;Shiu,JG;Singh,JB;Stanic,S;Staric,M;Sumisawa,K;Sumiyoshi,T;Suzuki,S;Taylor,GN;Teramoto,Y;Trabelsi,K;Tsuboyama,T;Uehara,S;Unno,Y;Uno,S;Urquijo,P;Ushiroda,Y;Varner,G;Varvell,KE;Vervink,K;Wang,CH;Wang,MZ;Wang,P;Watanabe,Y;Wedd,R;Wicht,J;Won,E;Yabsley,BD;Yamamoto,H;Yamashita,Y;Zhang,ZP;Zivko,T;Zupanc,A |
| 貢獻者: | 物理研究所 |
| 關鍵詞: | BELLE DETECTOR;PHYSICS;CONSTRAINTS;B->S-GAMMA;SPECTRUM;MOMENTS |
| 日期: | 2009 |
| 上傳時間: | 2010-07-08 14:00:13 (UTC+8) |
| 出版者: | 中央大學 |
| 摘要: | Using 605 fb(-1) of data collected at the Upsilon(4S) resonance we present a measurement of the inclusive radiative B-meson decay channel, B -> X-s gamma. For the lower photon energy thresholds of 1.7, 1.8, 1.9, and 2.0 GeV, as defined in the rest frame of the B meson, we measure the partial branching fraction and the mean and variance of the photon energy spectrum. At the 1.7 GeV threshold we obtain the partial branching fraction BF(B -> X-s gamma)=(3.45 +/- 0.15 +/- 0.40)x10(-4), where the errors are statistical and systematic. |
| 關聯: | PHYSICAL REVIEW LETTERS |
| 顯示於類別: | [物理研究所] 期刊論文
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