Search For The Rare Decay Of Psi(3686) -> Lambda+Pe(+)E(-) +C.C. At Besiii

M. Ablikim,M. N. Achasov,S. Ahmed,M. Albrecht,M. Alekseev,A. Amoroso,F. F. An,Q. An,J. Z. Bai,Y. Bai,O. Bakina,R. Baldini Ferroli,Y. Ban,K. Begzsuren,D. W. Bennett,J. Bennett,N. Berger,M. Bertani,D. Bettoni,F. Bianchi,E. Boger,I Boyko,R. A. Briere,H. Cai,X. Cai,O. Cakir,A. Calcaterra,G. F. Cao,S. A. Cetin,J. Chai,J. F. Chang,G. Chelkov,G. Chen,H. S. Chen,J. C. Chen,M. L. Chen,P. L. Chen,S. J. Chen,X. R. Chen,Y. B. Chen,X. K. Chu,G. Cibinetto,F. Cossio,H. L. Dai,J. P. Dai,A. Dbeyssi,D. Dedovich,Z. Y. Deng,A. Denig,I Denysenko,M. Destefanis,F. De Mori,Y. Ding,C. Dong,J. Dong,L. Y. Dong,M. Y. Dong,Z. L. Dou,S. X. Du,P. F. Duan,J. Fang,S. S. Fang,Y. Fang,R. Farinelli,L. Fava,S. Fegan,F. Feldbauer,G. Felici,C. Q. Feng,E. Fioravanti,M. Fritsch,C. D. Fu,Q. Gao,X. L. Gao,Y. Gao,Y. G. Gao,Z. Gao,B. Garillon,A. Gilman,K. Goetzen,L. Gong,W. X. Gong,M. Greco,M. H. Gu,Y. T. Gu,A. Q. Guo,R. P. Guo,Y. P. Guo,A. Guskov,Z. Haddadi,S. Han,X. Q. Hao,F. A. Harris,K. L. He,X. Q. He,F. H. Heinsius,T. Held,Y. K. Heng,T. Holtmann,Z. L. Hou,H. M. Hu,J. F. Hu,T. Hu,Y. Hu,G. S. Huang,J. S. Huang,X. T. Huang,X. Z. Huang,Z. L. Huang,T. Hussain,W. Ikegami Andersson,M. Irshad,Q. Ji,Q. P. Ji,X. B. Ji,X. L. Ji,X. S. Jiang,X. Y. Jiang,J. B. Jiao,Z. Jiao,D. P. Jin,S. Jin,Y. Jin,T. Johansson,A. Julin,N. Kalantar-Nayestanaki,X. S. Kang,M. Kavatsyuk,B. C. Ke,T. Khan,A. Khoukaz,P. Kiese,R. Kliemt,L. Koch,O. B. Kolcu,B. Kopf,M. Kornicer,M. Kuemmel,M. Kuessner,A. Kupsc,M. Kurth,W. Kuehn,J. S. Lange,M. Lara,P. Larin,L. Lavezzi,H. Leithoff,C. Li,Cheng Li,D. M. Li,F. Li,F. Y. Li,G. Li,H. B. Li,H. J. Li,J. C. Li,J. W. Li,Jin Li,K. J. Li,Kang Li,Ke Li,Lei Li,P. L. Li,P. R. Li,Q. Y. Li,W. D. Li,W. G. Li,X. L. Li,X. N. Li,X. Q. Li,Z. B. Li,H. Liang,Y. F. Liang,Y. T. Liang,G. R. Liao,L. Z. Liao,J. Libby,C. X. Lin,D. X. Lin,B. Liu,B. J. Liu,C. X. Liu,D. Liu,D. Y. Liu,F. H. Liu,Fang Liu,Feng Liu,H. B. Liu,H. L. Liu,H. M. Liu,Huanhuan Liu,Huihui Liu,J. B. Liu,J. Y. Liu,K. Liu,K. Y. Liu,Ke Liu,L. D. Liu,Q. Liu,S. B. Liu,X. Liu,Y. B. Liu,Z. A. Liu,Zhiqing Liu,Y. F. Long,X. C. Lou,H. J. Lu,J. G. Lu,Y. Lu,Y. P. Lu,C. L. Luo,M. X. Luo,X. L. Luo,S. Lusso,X. R. Lyu,F. C. Ma,H. L. Ma,L. L. Ma,M. M. Ma,Q. M. Ma,T. Ma,X. N. Ma,X. Y. Ma,Y. M. Ma,F. E. Maas,M. Maggiora,Q. A. Malik,A. Mangoni,Y. J. Mao,Z. P. Mao,S. Marcello,Z. X. Meng,J. G. Messchendorp,G. Mezzadri,J. Min,R. E. Mitchell,X. H. Mo,Y. J. Mo,C. Morales Morales,N. Yu Muchnoi,H. Muramatsu,A. Mustafa,Y. Nefedov,F. Nerling,I. B. Nikolaev,Z. Ning,S. Nisar,S. L. Niu,X. Y. Niu,S. L. Olsen,Q. Ouyang,S. Pacetti,Y. Pan,M. Papenbrock,P. Patteri,M. Pelizaeus,J. Pellegrino,H. P. Peng,Z. Y. Peng,K. Peters,J. Pettersson,J. L. Ping,R. G. Ping,A. Pitka,R. Poling,V Prasad,H. R. Qi,M. Qi,T. Y. Qi,S. Qian,C. F. Qiao,N. Qin,X. S. Qin,Z. H. Qin,J. F. Qiu,K. H. Rashid,C. F. Redmer,M. Richter,M. Ripka,M. Rolo,G. Rong,Ch Rosner,A. Sarantsev,M. Savrie,C. Schnier,K. Schoenning,W. Shan,X. Y. Shan,M. Shao,C. P. Shen,P. X. Shen,X. Y. Shen,H. Y. Sheng, X. Shi,J. J. Song,W. M. Song,X. Y. Song,S. Sosio,C. Sowa,S. Spataro,G. X. Sun,J. F. Sun,L. Sun,S. S. Sun,X. H. Sun,Y. J. Sun,Y. K. Sun,Y. Z. Sun,Z. J. Sun,Z. T. Sun,Y. T. Tan,C. J. Tang,G. Y. Tang,X. Tang,I Tapan,M. Tiemens,B. Tsednee,I Uman,G. S. Varner,B. Wang,B. L. Wang,D. Wang,D. Y. Wang,Dan Wang,K. Wang,L. L. Wang,L. S. Wang,M. Wang,Meng Wang,P. Wang,P. L. Wang,W. P. Wang,X. F. Wang,Y. Wang,Y. F. Wang,Y. Q. Wang,Z. Wang,Z. G. Wang,Z. Y. Wang,Zongyuan Wang,T. Weber,D. H. Wei,P. Weidenkaff,S. P. Wen,U. Wiedner,M. Wolke,L. H. Wu,L. J. Wu,Z. Wu,L. Xia,Y. Xia,D. Xiao,Y. J. Xiao,Z. J. Xiao,Y. G. Xie,Y. H. Xie,X. A. Xiong,Q. L. Xiu,G. F. Xu,J. J. Xu,L. Xu,Q. J. Xu,Q. N. Xu,X. P. Xu,F. Yan,L. Yan,W. B. Yan,W. C. Yan,Y. H. Yan,H. J. Yang,H. X. Yang,L. Yang,Y. H. Yang,Y. X. Yang,Yifan Yang,M. Ye,M. H. Ye,J. H. Yin,Z. Y. You,B. X. Yu,C. X. Yu,J. S. Yu,C. Z. Yuan,Y. Yuan,A. Yuncu,A. A. Zafar,Y. Zeng,Z. Zeng,B. X. Zhang,B. Y. Zhang,C. C. Zhang,D. H. Zhang,H. H. Zhang,H. Y. Zhang,J. Zhang,J. L. Zhang,J. Q. Zhang,J. W. Zhang,J. Y. Zhang,J. Z. Zhang,K. Zhang,L. Zhang,T. J. Zhang,X. Y. Zhang,Y. Zhang,Y. H. Zhang,Y. T. Zhang,Yang Zhang,Yao Zhang,Yu Zhang,Z. H. Zhang,Z. P. Zhang,Z. Y. Zhang,G. Zhao,J. W. Zhao,J. Y. Zhao,J. Z. Zhao,Lei Zhao,Ling Zhao,M. G. Zhao,Q. Zhao,S. J. Zhao,T. C. Zhao,Y. B. Zhao,Z. G. Zhao,A. Zhemchugov,B. Zheng,J. P. Zheng,Y. H. Zheng,B. Zhong,L. Zhou,Q. Zhou,X. Zhou,X. K. Zhou,A. N. Zhu,J. Zhu,K. Zhu,K. J. Zhu,S. Zhu,S. H. Zhu,X. L. Zhu,Y. C. Zhu,Y. S. Zhu,Z. A. Zhu,J. Zhuang,B. S. Zou,J. H. Zou

PHYSICAL REVIEW D（2018）

Cited 3|Views33

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Abstract

Based on a data sample of (448.1 +/- 2.9) x 10(6)Psi(3686) decays collected with the BESIII experiment, a search for the flavor changing neutral current transition Psi(3686) -> Lambda(+)(c) pe(+) e(-) + c.c. is performed for the first time. No signal candidates are observed and the upper limit on the branching fraction of Psi(3686) -> Lambda(+)(c) pe(+) e(-) is determined to be 1.7 x 10(-6) at the 90% confidence level. The result is consistent with expectations from the standard model, and no evidence for new physics is found.

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Key words

rare decay,<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml

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