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Measurement of the branching fraction for ψ(3770)→γχc0
- Collaboration, BESIII;
- 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, F;
- 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, P;
- Kliemt, R;
- Kloss, B;
- Kolcu, OB;
- Kopf, B;
- Kornicer, M;
- Kuehn, W;
- Kupsc, A;
- Lange, JS;
- Lara, M;
- Larin, P;
- 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;
- Maggiora, 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, P;
- 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;
- Savrié, 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, P;
- 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, P;
- 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
Published Web Location
http://doi.org/10.1016/j.physletb.2015.11.074No 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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