Measurement of the branching fraction for psi(3770) -> gamma chi c0
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Measurement of the branching fraction for psi(3770) -> gamma chi c0

  • Author(s): Ablikim, M;
  • Achasov, MN;
  • Ai, XC;
  • Albayrak, O;
  • Albrecht, M;
  • Ambrose, DJ;
  • Amoroso, A;
  • An, FF;
  • An, Q;
  • Bai, JZ;
  • Ferroli, R Baldini;
  • Ban, Y;
  • Bennett, DW;
  • Bennett, JV;
  • Bertani, M;
  • Bettoni, D;
  • Bian, JM;
  • Bianchi, E;
  • Boger, E;
  • Boyko, I;
  • Briere, RA;
  • Cai, H;
  • Cai, X;
  • Cakir, O;
  • Calcaterra, A;
  • Cao, GF;
  • Cetin, SA;
  • Chang, JF;
  • Chelkov, G;
  • Chen, G;
  • Chen, HS;
  • Chen, HY;
  • Chen, JC;
  • Chen, ML;
  • Chen, SJ;
  • Chen, X;
  • Chen, XR;
  • Chen, YB;
  • Cheng, HP;
  • Chu, XK;
  • Cibinetto, G;
  • Dai, HL;
  • Dai, JP;
  • Dbeyssi, A;
  • Dedovich, D;
  • Deng, ZY;
  • Denig, A;
  • Denysenko, I;
  • Destefanis, M;
  • De Mori, F;
  • Ding, Y;
  • Dong, C;
  • Dong, J;
  • Dong, LY;
  • Dong, MY;
  • Dou, ZL;
  • Du, SX;
  • Duan, PF;
  • Eren, EE;
  • Fan, JZ;
  • Fang, J;
  • Fang, SS;
  • Fang, X;
  • Fang, Y;
  • Farinelli, R;
  • Fava, L;
  • Fedorov, O;
  • Feldbauer, F;
  • Felici, G;
  • Feng, CQ;
  • Fioravanti, E;
  • Fritsch, M;
  • Fu, CD;
  • Gao, Q;
  • Gao, XL;
  • Gao, XY;
  • Gao, Y;
  • Gao, Z;
  • Garzia, I;
  • Goetzen, K;
  • Gong, L;
  • Gong, WX;
  • Gradl, W;
  • Greco, M;
  • Gu, MH;
  • Gu, YT;
  • Guan, YH;
  • Guo, AQ;
  • Guo, LB;
  • Guo, Y;
  • Guo, YP;
  • Haddadi, Z;
  • Hafner, A;
  • Han, S;
  • Hao, XQ;
  • Harris, FA;
  • He, KL;
  • Held, T;
  • Heng, YK;
  • Hou, ZL;
  • Hu, C;
  • Hu, HM;
  • Hu, JF;
  • Hu, T;
  • Hu, Y;
  • Huang, GS;
  • Huang, JS;
  • Huang, XT;
  • Huang, Y;
  • Hussain, T;
  • Ji, Q;
  • Ji, QP;
  • Ji, XB;
  • Ji, XL;
  • Jiang, LW;
  • Jiang, XS;
  • Jiang, XY;
  • Jiao, JB;
  • Jiao, Z;
  • Jin, DP;
  • Jin, S;
  • Johansson, T;
  • Julin, A;
  • Kalantar-Nayestanaki, N;
  • Kang, XL;
  • Kang, XS;
  • Kavatsyuk, M;
  • Ke, BC;
  • Kiese, R;
  • Kliemt, R;
  • Kloss, B;
  • Kolcu, OB;
  • Kopf, B;
  • Kornicer, M;
  • Kuehn, W;
  • Kupsc, A;
  • Lange, JS;
  • Lara, M;
  • Larin, R;
  • Leng, C;
  • Li, C;
  • Li, Cheng;
  • Li, DM;
  • Li, F;
  • Li, FY;
  • Li, G;
  • Li, HB;
  • Li, JC;
  • Li, Jin;
  • Li, K;
  • Li, K;
  • Li, Lei;
  • Li, PR;
  • Li, QY;
  • Li, T;
  • Li, WD;
  • Li, WG;
  • Li, XL;
  • Li, XM;
  • Li, XN;
  • Li, XQ;
  • Li, ZB;
  • Liang, H;
  • Liang, YF;
  • Liang, YT;
  • Liao, GR;
  • Lin, DX;
  • Liu, BJ;
  • Liu, CX;
  • Liu, D;
  • Liu, FH;
  • Liu, Fang;
  • Liu, Feng;
  • Liu, HB;
  • Liu, HH;
  • Liu, HH;
  • Liu, HM;
  • Liu, J;
  • Liu, JB;
  • Liu, JP;
  • Liu, JY;
  • Liu, K;
  • Liu, KY;
  • Liu, LD;
  • Liu, PL;
  • Liu, Q;
  • Liu, SB;
  • Liu, X;
  • Liu, YB;
  • Liu, ZA;
  • Liu, Zhiqing;
  • Loehner, H;
  • Lou, XC;
  • Lu, HJ;
  • Lu, JG;
  • Lu, Y;
  • Lu, YP;
  • Luo, CL;
  • Luo, MX;
  • Luo, T;
  • Luo, XL;
  • Lyu, XR;
  • Ma, FC;
  • Ma, HL;
  • Ma, LL;
  • Ma, QM;
  • Ma, T;
  • Ma, XN;
  • Ma, XY;
  • Ma, YM;
  • Maas, FE;
  • Maggiura, M;
  • Mao, YJ;
  • Mao, ZP;
  • Marcello, S;
  • Messchendorp, JG;
  • Min, J;
  • Mitchell, RE;
  • Mo, XH;
  • Mo, YJ;
  • Morales, C Morales;
  • Muchnoi, N Yu;
  • Muramatsu, H;
  • Nefedov, Y;
  • Nerling, F;
  • Nikolaev, IB;
  • Ning, Z;
  • Nisar, S;
  • Niu, SL;
  • Niu, XY;
  • Olsen, SL;
  • Ouyang, Q;
  • Pacetti, S;
  • Pan, Y;
  • Patteri, R;
  • Pelizaeus, M;
  • Peng, HP;
  • Peters, K;
  • Pettersson, J;
  • Ping, JL;
  • Ping, RG;
  • Poling, R;
  • Prasad, V;
  • Qi, HR;
  • Qi, M;
  • Qian, S;
  • Qiao, CF;
  • Qin, LQ;
  • Qin, N;
  • Qin, XS;
  • Qin, ZH;
  • Qiu, JF;
  • Rashid, KH;
  • Redmer, CF;
  • Ripka, M;
  • Rong, G;
  • Rosner, Ch;
  • Ruan, XD;
  • Santoro, V;
  • Sarantsev, A;
  • Savrie, M;
  • Schoenning, K;
  • Schumann, S;
  • Shan, W;
  • Shao, M;
  • Shen, CP;
  • Shen, PX;
  • Shen, XY;
  • Sheng, HY;
  • Song, WM;
  • Song, XY;
  • Sosio, S;
  • Spataro, S;
  • Sun, GX;
  • Sun, JF;
  • Sun, SS;
  • Sun, YJ;
  • Sun, YZ;
  • Sun, ZJ;
  • Sun, ZT;
  • Tang, CJ;
  • Tang, X;
  • Tapan, I;
  • Thorndike, EH;
  • Tiemens, M;
  • Ullrich, M;
  • Uman, I;
  • Varner, GS;
  • Wang, B;
  • Wang, BL;
  • Wang, D;
  • Wang, DY;
  • Wang, K;
  • Wang, LL;
  • Wang, LS;
  • Wang, M;
  • Wang, R;
  • Wang, PL;
  • Wang, SG;
  • Wang, W;
  • Wang, WP;
  • Wang, XF;
  • Wang, YD;
  • Wang, YF;
  • Wang, YQ;
  • Wang, Z;
  • Wang, ZG;
  • Wang, ZH;
  • Wang, ZY;
  • Weber, T;
  • Wei, DH;
  • Wei, JB;
  • Weidenkaff, R;
  • Wen, SP;
  • Wiedner, U;
  • Wolke, M;
  • Wu, LH;
  • Wu, Z;
  • Xia, L;
  • Xia, LG;
  • Xia, Y;
  • Xiao, D;
  • Xiao, H;
  • Xiao, ZJ;
  • Xie, YG;
  • Xiu, QL;
  • Xu, GF;
  • Xu, L;
  • Xu, QJ;
  • Xu, QN;
  • Xu, XP;
  • Yan, L;
  • Yan, WB;
  • Yan, WC;
  • Yan, YH;
  • Yang, HJ;
  • Yang, HX;
  • Yang, L;
  • Yang, YX;
  • Ye, M;
  • Ye, MH;
  • Yin, JH;
  • Yu, BX;
  • Yu, CX;
  • Yu, JS;
  • Yuan, CZ;
  • Yuan, WL;
  • Yuan, Y;
  • Yuncu, A;
  • Zafar, AA;
  • Zallo, A;
  • Zeng, Y;
  • Zeng, Z;
  • Zhang, BX;
  • Zhang, BY;
  • Zhang, C;
  • Zhang, CC;
  • Zhang, DH;
  • Zhang, HH;
  • Zhang, HY;
  • Zhang, JJ;
  • Zhang, JL;
  • Zhang, JQ;
  • Zhang, JW;
  • Zhang, JY;
  • Zhang, JZ;
  • Zhang, K;
  • Zhang, L;
  • Zhang, XY;
  • Zhang, Y;
  • Zhang, YH;
  • Zhang, YN;
  • Zhang, YT;
  • Zhang, Yu;
  • Zhang, ZH;
  • Zhang, ZP;
  • Zhang, ZY;
  • Zhao, G;
  • Zhao, JW;
  • Zhao, JY;
  • Zhao, JZ;
  • Zhao, Lei;
  • Zhao, Ling;
  • Zhao, MG;
  • Zhao, Q;
  • Zhao, QW;
  • Zhao, SJ;
  • Zhao, TC;
  • Zhao, YB;
  • Zhao, ZG;
  • Zhemchugov, A;
  • Zheng, B;
  • Zheng, JP;
  • Zheng, WJ;
  • Zheng, YH;
  • Zhong, B;
  • Zhou, L;
  • Zhou, X;
  • Zhou, XK;
  • Zhou, XR;
  • Zhou, XY;
  • Zhu, K;
  • Zhu, KJ;
  • Zhu, S;
  • Zhu, SH;
  • Zhu, XL;
  • Zhu, YC;
  • Zhu, YS;
  • Zhu, ZA;
  • Zhuang, J;
  • Zotti, L;
  • Zou, BS;
  • Zou, JH;
  • Collaboration, BESIII
  • et al.

Published Web Location

http://doi.org/10.1016/j.physletb.2015.11.074
No data is associated with this publication.
Abstract

By analyzing a data set of 2.92 fb$^{-1}$ of $e^+e^-$ collision data taken at $\sqrt s= 3.773~\rm GeV$ and 106.41$\times 10^{6}$ $\psi(3686)$ decays taken at $\sqrt s= 3.686~\rm GeV$ with the BESIII detector at the BEPCII collider, we measure the branching fraction and the partial decay width for $\psi(3770)\to\gamma\chi_{c0}$ to be ${\mathcal B}(\psi(3770)\to\gamma\chi_{c0})=(6.88\pm0.28\pm0.67)\times 10^{-3}$ and $\Gamma[\psi(3770)\to\gamma\chi_{c0}]=(187\pm8\pm19)~\rm keV$, respectively. These are the most precise measurements to date.

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