Measurement Of Branching Fractions For Psi(3686) -> Gamma Eta ', Gamma Eta, And Gamma Pi(0)
Medina Ablikim,Xiaonan Li,Serkant Ali Cetin,Dapeng Jin, W. Shan,Kun Zhang,A. Kupsc,Yu Hu,X. M. Li,Kanglin He,G. Morello,X. T. Huang,Mikhail N Achasov,Wolfgang Kuehn K "uhn,Bin Wang,Mauro Savrié Savri 'e, Y. Ding,Ling Zhao,Jingzhi Bai, F. Cossio,Zhigang Wang, Hongbang Liu, J. Chai,M. Alekseev,Alaa Dbeyssi,Zhonghua Qin,G. Rong,Guangrui Liao,Xiongfei Wang, L. Xia,Fengcai Ma,X. C. Lou,Bo Zheng,C. L. Luo,Q. A. Malik,Jing Dong,J. Pellegrino,Kai Zhu,L. D. Liu,Shubin Liu,M. H. Ye, M. Ripka,Peiliang Wang,Achim Denig, Z. Gao,L. Lavezzi,O. Dorjkhaidav,Fang Liu,Yunpeng Lu,Y. X. Yang,X. S. Jiang,Ke Liu,J. Min,Fenfen An,Beijiang Liu,Peilian Li,Wenxuan Gong,Igor Boyko,Y. Z. Sun,Zhilong Hou,Evgeny Boger,Zepu Mao,Yifang Wang,S. Q. Zhang,Haibo Li,M. Maggiora,Xiqing Hao,Jin Li,Frederick A. Harris,X. Y. Jiang, C. Sowa,Dong Liu,Yuanning Gao,Shihai Zhu,Qing Gao,M. Rolo,Pengfei Duan,Z.Q. Zhang,Qun OuYang Ouyang,Yong Ban,Dahua Zhang, C. Schnier,L. Koch,Shengsen Sun,Xiaoyan Shen,Hongyu Zhang,Fengyun Li, Feng Liu,Xiaoshuai Qin, M. Qi,Jin Zhang, Y. F. Long,C. F. Redmer,Xueyao Zhang,Aiqiang Guo,Guofu Cao,Klaus Peters,B. Zhong,I. B. Nikolaev,Yubin Zhao,Huihui Liu,Xurong Chen,Li Zhou,Mingming Ma,Y. Pan,Q. M. Ma, A. Khoukaz,Xinlei Gao, J. H. Zou, Q. An,Jingjing Xu,Q. H. Xu,K. H. Rashid,L. L. Wang,Jianbei Liu, X. He, R. E. Mitchell, A. Yuncu,G. Felici,Jifeng Hu,Z. X. Meng, M. Kuemmel, S. Spataro,H. W. Liu,Changqing Feng,S. J. Zhao,D. Wang, O. Bakina,Gang Chen,Yaqian Wang,Xianglei Zhu,Meng Wang,Georgy Chelkov, G. Mezzadri, A. Amoroso,Dong Wang,Joachim Pettersson,L. H. Wu,S. L. Olsen,Lei Li,Y. G. Gao,Yongxu Yang, C. D. Fu,Lingshu Wang, F. Nerling,Xiaoshen Kang,J. H. Yin,L. L. Ma,Yuanbo Chen,Alexey Zhemchugov,Wenbiao Yan,Shuangshi Fang, A. Sarantsev,yingchun Zhu,S. Nisar,Tord Johansson,M. Kavatsyuk, B. Garillon,Z. Y. You,Alessandro Calcaterra, H. Leithoff,Jialun Ping,Jiawen Zhang,K. Liu,Demin Li,Xiaohu Mo,Fei Li,Bingsong Zou,Frank Maas, J. Libby,Guang Zhao,X.R. Zhou,Zi-An Zhu,X. L. Li, P. Kiese,Y. F. Liang, I. Garzia,Xiao Tang,Shenjian Chen,Jiangchuan Chen,Y. Zhang,H. J. Lu,M. Lara,J. G. Messchendorp,Zhiyong Wang,Hongrong Qi, M. Wolke,K. Zhu,Hong-Hao Zhang,J. H. Wei,I. Uman,Changzheng Yuan,X. L. Luo,Walter Ikegami Andersson,Qingping Ji,X. K. Zhou,Yonghong Yan,Weidong Li,G. M. Huang,Gongxing Sun,Zhenan Liu,Zhiqing Liu,Yajun Mao,Y. Xie,Y. G. Xie,Ziyan Deng,Haijun Yang, Y. Zeng,Cristina Morales Morales,Yu Zhang,Zongyuan Wang,xinkun Chu,Fabrizio Bianchi,Jingzhi Zhang,Monica Bertani,O. B. Kolcu, C. J. Tang,J. S. Yu,Orhan Cakir, F. Feldbauer,Simone Pacetti,Y. T. Gu,H. Peng,Jinfan Chang,N. Berger,Junfeng Sun, A. A. Zafar, Z. J. Xiao,Fu-Hu Liu,V. Prasad,Qingjun Xu,Q. P. Ji,Nikolai Yu Muchnoi,Yue Wang,J. G. Lu,Weiguo Li,C. B. Zhang,X. B. Ji, G. Varner,Hongliang Dai, X. A. Xiong,W. M. Song, R. Farinelli, P. Larin,K. Li,Cui Li,X. Y. Song, S. P. Wen, Y. T. Tan,Xiaozhong Huang,Haiming Hu,Mingyi Dong,T. Holtmann,L. Yang,C. L. Liu,Mingxing Luo,Huaimin Liu,Z. Zeng,Yateng Zhang, W. Gradl,Huayi Sheng,C. X. Yu,Sen Qian,Yongsheng Zhu,Dexu Lin, Xiao-Rui Lyu,B. X. Yu,Liang Yan, Y. J. Xiao, T. Hussain,Chongyang Leng,Rinaldo Baldini Ferroli,Jiacai Li,Qian Liu,T. Weber,Michela Greco,Li Gong, Y. Jin,Liang Sun,Hailong Ma,Jian Fang,R. G. Ping,H. Muramatsu,Dan Bennett,Yangheng Zheng,Y. J. Mo,Tianchi Zhao,A. Mustafa,JianPing Dai, Y. Xia, Cheng Li,Gang Li, G. Y. Tang,S. Fegan,Z. Sun,G. F. Xu, M. Kornicer, T. Held,Jingyi Liu,Jake Bennett,Hao Cai,Qiang Zhao,Dan Wang, P. Weidenkaff,Y. B. Liu,P. L. Li, M. Pelizaeus,Yang Zhang, M. Albrecht,X.B. Ma,Minhao Gu, N. Kalantar-Nayestanaki,N. Qin, Z. L. Huang,Zhibing Li,Ke Wang,Zhenyu Zhang,Cong-Feng Qiao,Lianjin Wu, Y. Bai,Xiaoyan Ma,Lei Zhang,B. X. Zhang,I. Tapan,Zhenglei Dou,S. L. Niu,Bingxin Zhang,Lei Xu,S. Ahmed, M. Destefanis,X. Sun,W. J. Zheng,B. Kopf,Bing Liu,Rupan Guo,M. G. Zhao,Tao Hu,H. Li,Jingwei Zhao,Ping Wang,Zheng Jiao,Francesca De Mori,Chengping Shen,Yu Lu,Y. Q. Wang, Xunyi Niu,D. H. Wei, L. Fava,Jinfa Qiu,Hesheng Chen, Z. Haddadi,Mei Ye,Jianping Zheng,T. Y. Qi,S. Gu,Y. Nefedov, R. Kliemt,Ronald Poling,Xingyu Zhou, E. Fioravanti,Jianbin Jiao,W. B. Yan, I. Denysenko,Q. L. Xiu,Ke Li,Yuekun Heng,M. Fritsch,Y. J. Sun,Hongxun Yang,Mary Chen,Ulrich Wiedner, B. Tsednee,Jian Zhuang,Jinshu Huang,Yan Zhang,Yao Zhang,Jingyi Zhao, D. Bettoni,Shuxian Du,Jingzhou Zhao,Kang Li,J. S. Lange,Lei Zhao,Yuping Guo,B. Q. Wang,Christoph Rosner,S. Zhu,X. Y. Shan,Xiaolu Ji, K. Goetzen,YuMing Ma,Weiping Wang,T. Khan, Dmitry Dedovich,S. Marcello,F. H. Heinsius, A. Pitka,Xiang Zhou,Xinping Xu,Jingqing Zhang, D. Xiao,J. Zhu,Zhengguo Zhao,Ming Shao,J. J. Song,Zhi Wu,Xiang Liu,Yi Fang,M. Kuhlmann,Z. T. Sun, C. Dong,L. Dong,Yongfei Liang,Zheng Wang,Hao Liang,Xiao Cai, M. Tiemens,Kai Liu,M. Papenbrock,Shan Jin,Yongjie Sun Sun,Ye Yuan,Alexey Guskov,Jianyong Zhang,S. Han,K. Schoenning,Peixun Shen, Zhenghao Zhang,R. A. Briere,B. C. Ke,Z. Ning,Tian Ma, G. Cibinetto, A. Julin, S. Sosio, P. Patteri,Q. Y. Li,M. Richter
PHYSICAL REVIEW D（2017）
引用 7|浏览28
摘要
Using a data sample of 448 x 10(6) psi(3686) events collected with the BESIII detector operating at the BEPCII storage ring, the decays psi(3686) -> gamma eta and psi(3686) -> gamma pi(0) are observed with a statistical significance of 7.3 sigma and 6.7 sigma, respectively. The branching fractions are measured to be B(psi(3686) -> gamma eta) = (0.85 +/- 0.18 +/- 0.05) x 10(-6) and B(psi(3686) ->gamma pi(0)) = (0.95 +/- 0.16 +/- 0.05) x 10(-6). In addition, we measure the branching fraction of psi(3686) -> gamma eta' to be B(psi(3686) -> gamma eta') = (125.1 +/- 2.2 +/- 6.2)x10(-6), which represents an improvement of precision over previous results.
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