Observation of χ cJ decays to ΛΛ̄π +π -

Medina Ablikim,Mikhail N. Achasov,David J. Ambrose,F. F. An,Qi AN,Zhenghua An,JingZhi Bai,Yong Ban,Julia K. Becker,J. V. Bennett,Monica B. Bertani,J. M. Bian,E. Boger,Olga A. Bondarenko,I. R. Boyko,Roy A. Briere,Vladimir V. Bytev,Xiao Cai,Osman Çakir,A. C. Calcaterra,Guofu Cao,Serkant A. Çetin,Jinfan Chang,Georgy A. Chelkov,Gang Chen,Hesheng Chen,Jin Chen,Mali Chen,San Chen,Yu Chen,H. P. Cheng,Yuanping Chu,Daniel P. Cronin-Hennessy,Hongliang Dai,Jianping Dai,Dmitri V. Dedovich,Ziyan Deng,Achim G. Denig,I. Denysenko,M. F. Destefanis,W. M. Ding,Yong Ding,LiaoYuan Dong,Mingyi Dong,ShuXian Du,Jian Fang,Shuangshi Fang,Luciano Fava,F. Feldbauer,Changqing Feng,Rinaldo Baldini Ferroli,ChengDong Fu,Jie Fu,Ya Gao,Chao Geng,K. Goetzen,Wenxuan Gong,W. Gradl,Michela Greco,M. H. Gu,YunTing Gu,Ying Guan,Aiqiang Guo,Libo Guo,Yan Guo, Yong Han,Frederick A. Harris,Kangling He,Mao He,Zhenya He,T. Held,Yuekun Heng,Zhilong Hou,Haiming Hu,Jifeng Hu,Tao Hu,Guangming Huang,Jinshu Huang,Xu Huang,Y. P. Huang,Tajamal Hussain,Chen Ji,Quan Ji,XiaoBin Ji,Xiaolu Ji,Lei Jiang,XiaoShan Jiang,Jun Jiao,Zheng Jiao,Dapeng Jin,Shan Jin,F. F. Jing,Nasser Kalantar-Nayestanaki,M. O. Kavatsyuk,Wolfgang Kuehn,Wanchang Lai,Jens Sören Lange,Cui Li,Cheng Li,Cui Li,D. M. Li,Fang Li,Gang Li,Haibo Li,Jiacai Li,Kang Li,Lei Li,Qiuju Li,Sheng Li,W. D. Li,WeiGuo Li,Xianlei Li,Xiaonan Li,Xueqian Li,Xiurong Li,Zhibing Li,Haojun Liang,Y. F. Liang,Yutie Liang,G. R. Liao,Xiaotao Liao,Beijiang Liu, Chao Liu,C. X. Liu, Cheng Liu,Fuhu Liu,Fang Liu,Feng Liu,Hongwei Liu,Hongbang Liu,Huihui Liu,HuaiMin Liu,H. W. Liu,Jia Liu,Kuiyong Liu,Kai Liu,Peng Liu,Qibin Liu,Shubin LIU,Xiang Liu,Xiaohai Liu,Yan Liu,Zhen'An Liu,Zhiqiang Liu,Zhiqing Liu,Herbert Loehner,GongRu Lu,HaiJiang Lü,JunGuang Lü,Qiwen Lü,X. R. Lu,Yunpeng Lu,Chenglin Luo,Man Luo,Tao Luo,XiaoLan Luo,M. Lv,Chao Ma,Fengcai Ma,HaiLong Ma,Qiang Ma,Sixuan Ma,T. Ma,Xiang Ma,Yuqian Ma,Frank E. Maas,Marco Maggiora,Q. A. Malik,Yajun Mao,Zepu Mao,Johan G M Messchendorp,Jian Min,Tai Min,Ryan E. Mitchell,XiaoHu Mo,Cornelio Morales Morales,C. Motzko,Nikolay Yu Muchnoi,H. Muramatsu,Yu A. Nefedov,Caitriana Nicholson,Ivan B. Nikolaev,Zhe Ning,Stephen Lars Olsen,Qun Ouyang,Simone P. Pacetti,Jewook Park,M. Pelizaeus,Hu Peng, Klaus J. Peters,Jialun Ping,Ronggang Ping,Ronald A. Poling,E. Prencipe,Ming Qi,Sen Qian,Congfeng Qiao,Xiaoshuai Qin,Yi Qin,ZhongHua Qin,Jing Qiu,K. H. Rashid,Gang Rong,XiangDong Ruan,Andrey V. Sarantsev,B. D. Schaefer,J. Schulze,Shao Ming,Chengping Shen,Xiaoyan Shen,Huayi Sheng,Matthew R. Shepherd,X. Y. Song,Stefano Spataro,Björn Spruck,D. H. Sun,Gongxing Sun,Jinfeng Sun,Shuaishuai Sun,YongJie Sun,Yi Sun,ZhiJia Sun,Zhe Sun,Changjian Tang,Xiaowei Tang,Ilhan Tapan,Edward H. Thorndike,Derrick Toth,Matthias Ullrich,Gary S. Varner,BaoRong Wang,Bing Wang,Kexiang Wang,LiangLiang Wang,Lan Wang,Meng Wang,Ping Wang,Peilin Wang,Qun Wang,Qian Wang,Shiguang Wang,Xiaolong Wang,Yandong Wang,Yifang Wang,Yongqiang Wang,Zhe Wang,Zhigang Wang,Zheng Wang,DaiHui Wei,P. Weidenkaff,Qungang Wen,Shuopin Wen,Marcel W. Werner,Ulrich Wiedner,LingHui Wu,Ning Wu,Si Wu,Wenjuan Wu,Ziyu Wu,Li Xia,Zhenjun Xiao,Yi Xie,Q. L. Xiu,Guang Xu,Guangming Xu,Hao Xu,Qingjun Xu,X. P. Xu,Zhangrun Xu,F. Xue,Zhen Xue,Litao Yan,Wang Yan,Yonghong Yan,Hai Yang,Yadong Yang,Yongxu Yang,H. Ye,Mei Ye,Minghan Ye,Boxiang Yu,Cao Yu,Jiesheng Yu,S. P Yu Yu,Chao Yuan,Ye Yuan,Abrar Ahmed Zafar,Adriano Z. Zallo,Yun Zeng,BingXin Zhang,Bin Zhang,Changchun Zhang,Dehong Zhang,Hui Zhang,Hongyu Zhang,Jian Zhang,Jiawen Zhang,Jing Zhang,S. H. Zhang,Xuan Zhang,Xueyao Zhang,Yi Zhang,Ying Zhang,Yao Zhang,Ziping Zhang,Zhenyu Zhang,Gongbo Zhao,Hui Zhao,J. W. Zhao,Kan Zhao,Lei Zhao,Ling Zhao,Minggang Zhao,Qiang Zhao,Shujun Zhao,Tianchi Zhao,Xin Zhao,Yubin Zhao,Zhi Zhao,Alexey S. Zhemchugov,B. Zheng,Jian Zheng,Yangheng Zheng,Bin Zhong,J. Zhong,Lijuan Zhou,Xin Zhou,C. Zhu,KeJun Zhu,Kai Zhu,Shihai Zhu,Xianglei Zhu,XiongWei Zhu,Y. C. Zhu,Y. M. Zhu,YongSheng Zhu,Zian Zhu,Jiejia Zhuang,Bingsong Zou,Jiaheng Zou

PHYSICAL REVIEW D（2012）

Cited 5|Views150

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Abstract

Decays of the chi(cJ) states (J = 0, 1, 2) to Lambda(Lambda) over bar pi(+)pi(-), including processes with intermediate Sigma(1385), are studied through the E1 transition psi(1) -> gamma chi(cJ) using 106 x 10(6) psi(1) events collected with the BESIII detector at BEPCII. This is the first observation of chi(cJ) decays to the final state Lambda(Lambda) over bar pi(+)pi(-). The branching ratio of the intermediate process chi(cJ) -> (Sigma) over bar (1385)(+/-) (Sigma) over bar (1385)(-/+) is also measured for the first time, and the results agree with the theoretical predictions based on the color-octet effect.

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