Measurement Of J/Psi -> Xi(1530+)(-) (Xi)Over-Bar(+) And Evidence For The Radiative Decay Xi(153)(-) -> Gamma Xi(-)

M. Ablikim,M. N. Achasov,P. Adlarson,S. Ahmed,M. Albrecht,M. Alekseev,A. Amoroso,F. F. An,Q. An,Y. Bai,O. Bakina,R. Baldini Ferroli,I. Balossino,Y. Ban,K. Begzsuren,J. V. Bennett,N. Berger,M. Bertani,D. Bettoni,F. Bianchi,J. Biernat,J. Bloms,I. Boyko,R. A. Briere,H. Cai,X. Cai,A. Calcaterra,G. F. Cao,N. Cao,S. A. Cetin,J. Chai,J. F. Chang,W. L. Chang,G. Chelkov,D. Y. Chen,G. Chen,H. S. Chen,J. C. Chen,M. L. Chen,S. J. Chen,Y. B. Chen,W. Cheng,G. Cibinetto,F. Cossio,X. F. Cui,H. L. Dai,J. P. Dai,X. C. 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,J. Z. Fan,J. Fang,S. S. Fang,Y. Fang,R. Farinelli,L. Fava,F. Feldbauer,G. Felici,C. Q. Feng,M. Fritsch,C. D. Fu,Y. Fu,Q. Gao,X. L. Gao,Y. Gao,Y. Gao,Y. G. Gao,Z. Gao,B. Garillon,I. Garzia,E. M. Gersabeck,A. Gilman,K. Goetzen,L. Gong,W. X. Gong,W. Gradl,M. Greco,L. M. Gu,M. H. Gu,S. Gu,Y. T. Gu,A. Q. Guo,L. B. Guo,R. P. Guo,Y. P. Guo,A. Guskov,S. Han,X. Q. Hao,F. A. Harris,K. L. He,F. H. Heinsius,T. Held,Y. K. Heng,M. Himmelreich,Y. R. Hou,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,N. Huesken,T. Hussain,W. Ikegami Andersson,W. Imoehl,M. Irshad,Q. Ji,Q. P. Ji,X. B. Ji,X. L. Ji,H. L. Jiang,X. S. Jiang,X. Y. Jiang,J. B. Jiao,Z. Jiao,D. P. Jin,S. Jin, Y. Jin,T. Johansson,N. Kalantar-Nayestanaki,X. S. Kang,R. Kappert,M. Kavatsyuk,B. C. Ke,I. K. Keshk,A. Khoukaz,P. Kiese,R. Kiuchi,R. Kliemt,L. Koch,O. B. Kolcu,B. Kopf,M. Kuemmel,M. Kuessner,A. Kupsc,M. Kurth,M. G. Kurth,W. Kuehn,J. S. Lange,P. Larin,L. Lavezzi,H. Leithoff,T. Lenz,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,Ke Li,L. K. Li,Lei Li,P. L. Li,P. R. Li,Q. Y. Li,W. D. Li,W. G. Li,X. H. Li,X. L. Li,X. N. Li,Z. B. Li,Z. Y. Li,H. Liang,H. Liang,Y. F. Liang,Y. T. Liang,G. R. Liao,L. Z. Liao,J. Libby,C. X. Lin,D. X. Lin,Y. J. 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. M. Liu,Huanhuan Liu,Huihui Liu,J. B. Liu,J. Y. Liu,K. Y. Liu,Ke Liu,L. Y. Liu,Q. Liu,S. B. Liu,T. Liu,X. Liu,X. Y. Liu,Y. B. Liu,Z. A. Liu,Zhiqing Liu,Y. F. Long,X. C. Lou,H. J. Lu,J. D. Lu,J. G. Lu,Y. Lu,Y. P. Lu,C. L. Luo,M. X. Luo,P. W. Luo,T. Luo,X. L. Luo,S. Lusso,X. R. Lyu,F. C. Ma,H. L. Ma,L. L. Ma,M. M. Ma,Q. M. Ma,X. N. Ma,X. X. Ma,X. Y. Ma,Y. M. Ma,F. E. Maas,M. Maggiora,S. Maldaner,S. Malde,Q. A. Malik,A. Mangoni,Y. J. Mao,Z. P. Mao,S. Marcello,Z. X. Meng,J. G. Messchendorp,G. Mezzadri,J. Min,T. J. Min,R. E. Mitchell,X. H. Mo,Y. J. Mo,C. Morales Morales,N. Yu. Muchnoi,H. Muramatsu,A. Mustafa,S. Nakhoul,Y. Nefedov,F. Nerling,I. B. Nikolaev,Z. Ning,S. Nisar,S. L. Niu,S. L. Olsen,Q. Ouyang,S. Pacetti,Y. Pan,M. Papenbrock,P. Patteri,M. Pelizaeus,H. P. 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. P. Qin,X. S. Qin,Z. H. Qin,J. F. Qiu,S. Q. Qu,K. H. Rashid,K. Ravindran,C. F. Redmer,M. Richter,A. Rivetti,V. Rodin,M. Rolo,G. Rong,Ch. Rosner,M. Rump,A. Sarantsev,Y. Schelhaas,K. Schoenning,W. Shan,X. Y. Shan,M. Shao,C. P. Shen,P. X. Shen,X. Y. Shen,H. Y. Sheng,X. Shi,X. D. Shi,J. J. Song,Q. Q. Song,X. Y. Song,S. Sosio,C. Sowa,S. Spataro,F. F. Sui,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,V. Thoren,B. Tsednee,I. Uman,B. Wang,B. L. Wang,C. W. Wang,D. Y. Wang,K. Wang,L. L. Wang,L. S. Wang,M. Wang,M. Z. Wang,Meng Wang,P. L. Wang,R. M. Wang,W. P. Wang,X. Wang,X. F. Wang,X. L. Wang,Y. Wang,Y. Wang,Y. F. Wang,Z. Wang,Z. G. Wang,Z. Y. Wang,Zongyuan Wang,T. Weber,D. H. Wei,P. Weidenkaff,H. W. Wen,S. P. Wen,U. Wiedner,G. Wilkinson,M. Wolke,L. H. Wu,L. J. Wu,Z. Wu,L. Xia,Y. Xia,S. Y. Xiao,Y. J. Xiao,Z. J. Xiao,Y. G. Xie,Y. H. Xie,T. Y. Xing,X. A. Xiong,Q. L. Xiu,G. F. Xu,J. J. Xu,L. Xu,Q. J. Xu,W. 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,R. X. Yang,S. L. Yang,Y. H. Yang,Y. X. Yang,Yifan Yang,Z. Q. Yang,M. Ye,M. H. Ye,J. H. Yin,Z. Y. You,B. X. Yu,C. X. Yu,J. S. Yu,T. Yu,C. Z. Yuan,X. Q. Yuan,Y. Yuan,A. Yuncu,A. A. Zafar,Y. 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. M. Zhang,S. F. Zhang,T. J. Zhang,X. Y. Zhang,Y. Zhang,Y. H. Zhang,Y. T. Zhang,Yang Zhang,Yao Zhang,Yi 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. Zheng,Y. H. Zheng,B. Zhong,L. Zhou,L. P. Zhou,Q. Zhou,X. Zhou,X. K. Zhou,X. R. Zhou,Xiaoyu Zhou,Xu Zhou,A. N. Zhu,J. Zhu,J. Zhu,K. Zhu,K. J. Zhu,S. H. Zhu,W. J. Zhu,X. L. Zhu,Y. C. Zhu,Y. S. Zhu,Z. A. Zhu,J. Zhuang,B. S. Zou,J. H. Zou

PHYSICAL REVIEW D（2020）

Cited 10|Views1

No score

Abstract

The SU(3)-flavor violating decay J/psi -> Xi(1530)(-) (Xi) over bar (+) + c.c. is studied using (1310.6 +/- 7.0) x 10(6) J/psi events collected with the BESIII detector at BEPCII, and the branching fraction is measured to be B(J/psi -> Xi(1530)(-) (Xi) over bar (+) + c.c.) = (3.17 +/- 0.02(stat) +/- 0.08(syst)) x 10(-4). This result is consistent with previous measurements with an order of magnitude improved precision. The angular parameter for this decay is measured for the first time and is found to be alpha = -0.21 +/- 0.04(stat) +/- 0.06(syst). In addition, we report evidence for the radiative decay Xi(1530)(-) -> gamma Xi(-) with a significance of 3.9 sigma, including the systematic uncertainties. The 90% confidence level upper limit on the branching fraction is determined to be B(Xi(1530)(-) -> gamma Xi(-)) <= 3.7%.

Translated text

Key words

<mmlmath xmlnsmml=http//wwww3org/1998/math/mathml,measurement

AI Read Science

Must-Reading Tree

Example

Generate MRT to find the research sequence of this paper

Chat Paper

Summary is being generated by the instructions you defined