Search for invisible decays of a dark photon using e+e− annihilation data at BESIII
M. Ablikim,M.N. Achasov,P. Adlarson,M. Albrecht,R. Aliberti, A. Amoroso,M.R. An, Q. An,X.H. Bai, Y. Bai, O. Bakina,R. Baldini Ferroli,I. Balossino, Y. Ban, V. Batozskaya,D. Becker,K. Begzsuren,N. Berger, M. Bertani, D. Bettoni,F. Bianchi, J. Bloms,A. Bortone, I. Boyko, R.A. Briere,A. Brueggemann, H. Cai, X. Cai,A. Calcaterra, G.F. Cao, N. Cao, S.A. Cetin, J.F. Chang,W.L. Chang, G. Chelkov,C. Chen,Chao Chen, G. Chen,H.S. Chen,M.L. Chen,S.J. Chen,S.M. Chen,T. Chen,X.R. Chen,X.T. Chen, Y.B. Chen,Z.J. Chen,W.S. Cheng, S.K. Choi, X. Chu,G. Cibinetto, S.C. Coen,F. Cossio, J.J. Cui,H.L. Dai, J.P. Dai, A. Dbeyssi,R.E. de Boer, D. Dedovich, Z.Y. Deng, A. Denig, I. Denysenko, M. Destefanis,F. De Mori, Y. Ding,J. Dong, L.Y. Dong, M.Y. Dong, X. Dong,S.X. Du,P. Egorov, Y.L. Fan, J. Fang, S.S. Fang, W.X. Fang,Y. Fang,R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C.Q. Feng, J.H. Feng, K. Fischer,M. Fritsch,C. Fritzsch, C.D. Fu, H. Gao,Y.N. Gao,Yang Gao, S. Garbolino, I. Garzia,P.T. Ge,Z.W. Ge, C. Geng,E.M. Gersabeck,A. Gilman, K. Goetzen, L. Gong, W.X. Gong, W. Gradl, M. Greco, L.M. Gu, M.H. Gu, Y.T. Gu,C.Y. Guan,A.Q. Guo, L.B. Guo, R.P. Guo, Y.P. Guo, A. Guskov, T.T. Han,W.Y. Han,X.Q. Hao, F.A. Harris,K.K. He,K.L. He, F.H. Heinsius,C.H. Heinz,Y.K. Heng,C. Herold,M. Himmelreich, T. Holtmann,G.Y. Hou,Y.R. Hou, Z.L. Hou, H.M. Hu, J.F. Hu, T. Hu, Y. Hu,G.S. Huang,K.X. Huang, L.Q. Huang, L.Q. Huang,X.T. Huang, Y.P. Huang,T. Hussain,N. Hüsken,W. Imoehl,M. Irshad, J. Jackson, S. Jaeger,S. Janchiv, E. Jang, J.H. Jeong, Q. Ji, Q.P. Ji,X.B. Ji,X.L. Ji,Y.Y. Ji,Z.K. Jia, H.B. Jiang,S.S. Jiang,X.S. Jiang,Y. Jiang, J.B. Jiao, Z. Jiao,S. Jin,Y. Jin,M.Q. Jing,T. Johansson, N. Kalantar-Nayestanaki,X.S. Kang,R. Kappert, M. Kavatsyuk,B.C. Ke,I.K. Keshk, A. Khoukaz,R. Kiuchi, R. Kliemt,L. Koch,O.B. Kolcu,B. Kopf,M. Kuemmel,M. Kuessner, A. Kupsc,W. Kühn, J.J. Lane,J.S. Lange, P. Larin,A. Lavania,L. Lavezzi, T.T. Lei,Z.H. Lei,H. Leithoff,M. Lellmann,T. Lenz, C. Li,C. Li, C.H. Li, Cheng Li,D.M. Li,F. Li,G. Li,H. Li,H.B. Li,H.J. Li,H.N. Li,J.Q. Li,J.S. Li,J.W. Li, Ke Li, L.J. Li, L.K. Li, Lei Li,M.H. Li, P.R. Li,S.X. Li,S.Y. Li,T. Li,W.D. Li,W.G. Li,X.H. Li, X.L. Li,Xiaoyu Li,Z.X. Li,Z.Y. Li,H. Liang,H. Liang,H. Liang,Y.F. Liang,Y.T. Liang, G.R. Liao,L.Z. Liao, J. Libby,A. Limphirat, D.X. Lin,T. Lin, B.J. Liu,C.X. Liu, D. Liu, F.H. Liu, Fang Liu, Feng Liu, G.M. Liu,H. Liu,H.B. Liu, H.M. Liu, Huanhuan Liu, Huihui Liu, J.B. Liu,J.L. Liu, J.Y. Liu, K. Liu, K.Y. Liu, Ke Liu,L. Liu,Lu Liu, M.H. Liu,P.L. Liu, Q. Liu,S.B. Liu,T. Liu, W.K. Liu, W.M. Liu,X. Liu, Y. Liu,Y.B. Liu, Z.A. Liu, Z.Q. Liu, X.C. Lou,F.X. Lu, H.J. Lu, J.G. Lu,X.L. Lu,Y. Lu,Y.P. Lu, Z.H. Lu, C.L. Luo, M.X. Luo,T. Luo, X.L. Luo, X.R. Lyu,Y.F. Lyu, F.C. Ma,H.L. Ma,L.L. Ma, M.M. Ma, Q.M. Ma, R.Q. Ma, R.T. Ma,X.Y. Ma,Y. 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, H. Miao, T.J. Min, R.E. Mitchell, X.H. Mo,N.Yu. Muchnoi,Y. Nefedov, F. Nerling,I.B. Nikolaev, Z. Ning,S. Nisar, Y. Niu, S.L. Olsen,Q. Ouyang,S. Pacetti, X. Pan, Y. Pan,A. Pathak, Y.P. Pei, M. Pelizaeus, H.P. Peng,K. Peters, J.L. Ping,R.G. Ping,S. Plura,S. Pogodin,V. Prasad,F.Z. Qi,H. Qi,H.R. Qi, M. Qi,T.Y. Qi, S. Qian, W.B. Qian, Z. Qian, C.F. Qiao, J.J. Qin, L.Q. Qin,X.P. Qin,X.S. Qin, Z.H. Qin, J.F. Qiu,S.Q. Qu, K.H. Rashid, C.F. Redmer, K.J. Ren,A. Rivetti,V. Rodin,M. Rolo, G. Rong,Ch. Rosner,S.N. Ruan, A. Sarantsev,Y. Schelhaas, C. Schnier, K. Schoenning,M. Scodeggio,K.Y. Shan, W. Shan,X.Y. Shan,J.F. Shangguan,L.G. Shao, M. Shao, C.P. Shen, H.F. Shen, X.Y. Shen,B.A. Shi, H.C. Shi, J.Y. Shi, Q.Q. Shi,R.S. Shi,X. Shi,X.D. Shi, J.J. Song,W.M. Song, Y.X. Song, S. Sosio, S. Spataro,F. Stieler, K.X. Su,P.P. Su, Y.J. Su, G.X. Sun,H. Sun, H.K. Sun,J.F. Sun,L. Sun, S.S. Sun,T. Sun,W.Y. Sun, X. Sun,Y.J. Sun,Y.Z. Sun,Z.T. Sun,Y.H. Tan,Y.X. Tan,C.J. Tang, G.Y. Tang,J. Tang,L.Y. Tao,Q.T. Tao,M. Tat,J.X. Teng,V. Thoren, W.H. Tian, Y. 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arxiv（2023）
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摘要
We report a search for a dark photon using 14.9 fb(-1) of e(+)e(-) annihilation data taken at center-of-mass energies from 4.13 to 4.60 GeV with the BESIII detector operated at the BEPCII storage ring. The dark photon is assumed to be produced in the radiative annihilation process of e(+)e(-) and to predominantly decay into light dark matter particles, which escape from the detector undetected. The mass range from 1.5 to 2.9 GeV is scanned for the dark photon candidate, and no significant signal is observed. The mass dependent upper limits at the 90% confidence level on the coupling strength parameter epsilon for a dark photon coupling with an ordinary photon vary between 1.6 x 10(-3) and 5.7 x 10(-3). (c) 2023 The Author(s). Published by Elsevier B.V.
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dark photon,invisible decays,annihilation data
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