Physics Letters B (Nov 2017)
Dark photon search in the mass range between 1.5 and 3.4 GeV/c2
- M. Ablikim,
- M.N. Achasov,
- X.C. Ai,
- O. Albayrak,
- M. Albrecht,
- D.J. Ambrose,
- A. Amoroso,
- F.F. An,
- Q. An,
- J.Z. Bai,
- R. Baldini Ferroli,
- Y. Ban,
- D.W. Bennett,
- J.V. Bennett,
- M. Bertani,
- D. Bettoni,
- J.M. Bian,
- F. Bianchi,
- E. Boger,
- I. Boyko,
- R.A. Briere,
- H. Cai,
- X. Cai,
- O. Cakir,
- A. Calcaterra,
- G.F. Cao,
- S.A. Cetin,
- J.F. Chang,
- G. Chelkov,
- G. Chen,
- H.S. Chen,
- H.Y. Chen,
- J.C. Chen,
- M.L. Chen,
- S.J. Chen,
- X. Chen,
- X.R. Chen,
- Y.B. Chen,
- H.P. Cheng,
- X.K. Chu,
- G. Cibinetto,
- 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,
- S.X. Du,
- P.F. Duan,
- E.E. Eren,
- J.Z. Fan,
- J. Fang,
- S.S. Fang,
- X. Fang,
- Y. Fang,
- L. Fava,
- F. Feldbauer,
- G. Felici,
- C.Q. Feng,
- E. Fioravanti,
- M. Fritsch,
- C.D. Fu,
- Q. Gao,
- X.Y. Gao,
- Y. Gao,
- Z. Gao,
- I. Garzia,
- C. Geng,
- K. Goetzen,
- W.X. Gong,
- W. Gradl,
- M. Greco,
- M.H. Gu,
- Y.T. Gu,
- Y.H. Guan,
- A.Q. Guo,
- L.B. Guo,
- Y. Guo,
- Y.P. Guo,
- Z. Haddadi,
- A. Hafner,
- S. Han,
- Y.L. Han,
- X.Q. Hao,
- F.A. Harris,
- K.L. He,
- Z.Y. He,
- T. Held,
- Y.K. Heng,
- Z.L. Hou,
- C. Hu,
- H.M. Hu,
- J.F. Hu,
- T. Hu,
- Y. Hu,
- G.M. Huang,
- G.S. Huang,
- H.P. Huang,
- J.S. Huang,
- X.T. Huang,
- Y. Huang,
- T. Hussain,
- Q. Ji,
- Q.P. Ji,
- X.B. Ji,
- X.L. Ji,
- L.L. Jiang,
- L.W. Jiang,
- X.S. Jiang,
- X.Y. Jiang,
- J.B. Jiao,
- Z. Jiao,
- D.P. Jin,
- S. Jin,
- T. Johansson,
- A. Julin,
- N. Kalantar-Nayestanaki,
- X.L. Kang,
- X.S. Kang,
- M. Kavatsyuk,
- B.C. Ke,
- P. Kiese,
- R. Kliemt,
- B. Kloss,
- O.B. Kolcu,
- B. Kopf,
- M. Kornicer,
- W. Kuehn,
- A. Kupsc,
- J.S. Lange,
- M. Lara,
- P. Larin,
- C. Leng,
- C. Li,
- C.H. Li,
- Cheng Li,
- D.M. Li,
- F. Li,
- G. Li,
- H.B. Li,
- J.C. Li,
- Jin Li,
- K. Li,
- K. Li,
- Lei Li,
- P.R. Li,
- T. Li,
- W.D. Li,
- W.G. Li,
- X.L. Li,
- X.M. Li,
- X.N. Li,
- X.Q. Li,
- Z.B. Li,
- H. Liang,
- Y.F. Liang,
- Y.T. Liang,
- G.R. Liao,
- D.X. Lin,
- B.J. Liu,
- C.X. Liu,
- F.H. Liu,
- Fang Liu,
- Feng Liu,
- H.B. Liu,
- H.H. Liu,
- H.H. Liu,
- H.M. Liu,
- J. Liu,
- J.B. Liu,
- J.P. Liu,
- J.Y. Liu,
- K. Liu,
- K.Y. Liu,
- L.D. Liu,
- P.L. Liu,
- Q. Liu,
- S.B. Liu,
- X. Liu,
- X.X. Liu,
- Y.B. Liu,
- Z.A. Liu,
- Zhiqiang Liu,
- Zhiqing Liu,
- H. Loehner,
- X.C. Lou,
- H.J. Lu,
- J.G. Lu,
- R.Q. Lu,
- Y. Lu,
- Y.P. Lu,
- C.L. Luo,
- M.X. Luo,
- T. Luo,
- X.L. Luo,
- M. Lv,
- X.R. Lyu,
- F.C. Ma,
- H.L. Ma,
- L.L. Ma,
- Q.M. Ma,
- T. Ma,
- X.N. Ma,
- X.Y. Ma,
- F.E. Maas,
- M. Maggiora,
- Y.J. Mao,
- Z.P. Mao,
- S. Marcello,
- J.G. Messchendorp,
- J. Min,
- T.J. Min,
- R.E. Mitchell,
- X.H. Mo,
- Y.J. Mo,
- C. Morales Morales,
- K. Moriya,
- N.Yu. Muchnoi,
- H. Muramatsu,
- Y. Nefedov,
- F. Nerling,
- I.B. Nikolaev,
- Z. Ning,
- S. Nisar,
- S.L. Niu,
- X.Y. Niu,
- S.L. Olsen,
- Q. Ouyang,
- S. Pacetti,
- P. Patteri,
- M. Pelizaeus,
- H.P. Peng,
- K. Peters,
- J. Pettersson,
- J.L. Ping,
- R.G. Ping,
- R. Poling,
- V. Prasad,
- Y.N. Pu,
- M. Qi,
- S. Qian,
- C.F. Qiao,
- L.Q. Qin,
- N. Qin,
- X.S. Qin,
- Y. Qin,
- Z.H. Qin,
- J.F. Qiu,
- K.H. Rashid,
- C.F. Redmer,
- H.L. Ren,
- M. Ripka,
- G. Rong,
- Ch. Rosner,
- X.D. Ruan,
- V. Santoro,
- A. Sarantsev,
- M. Savrié,
- K. Schoenning,
- S. Schumann,
- W. Shan,
- M. Shao,
- C.P. Shen,
- P.X. Shen,
- X.Y. Shen,
- H.Y. Sheng,
- W.M. Song,
- X.Y. Song,
- S. Sosio,
- S. Spataro,
- G.X. Sun,
- J.F. Sun,
- S.S. Sun,
- Y.J. Sun,
- Y.Z. Sun,
- Z.J. Sun,
- Z.T. Sun,
- C.J. Tang,
- X. Tang,
- I. Tapan,
- E.H. Thorndike,
- M. Tiemens,
- M. Ullrich,
- I. Uman,
- G.S. Varner,
- B. Wang,
- B.L. Wang,
- D. Wang,
- D.Y. Wang,
- K. Wang,
- L.L. Wang,
- L.S. Wang,
- M. Wang,
- P. Wang,
- P.L. Wang,
- S.G. Wang,
- W. Wang,
- X.F. Wang,
- Y.D. Wang,
- Y.F. Wang,
- Y.Q. Wang,
- Z. Wang,
- Z.G. Wang,
- Z.H. Wang,
- Z.Y. Wang,
- T. Weber,
- D.H. Wei,
- J.B. Wei,
- P. Weidenkaff,
- S.P. Wen,
- U. Wiedner,
- M. Wolke,
- L.H. Wu,
- Z. Wu,
- L.G. Xia,
- Y. Xia,
- D. Xiao,
- H. Xiao,
- Z.J. Xiao,
- Y.G. Xie,
- Q.L. Xiu,
- G.F. Xu,
- L. Xu,
- Q.J. Xu,
- Q.N. Xu,
- X.P. Xu,
- L. Yan,
- W.B. Yan,
- W.C. Yan,
- Y.H. Yan,
- H.J. Yang,
- H.X. Yang,
- L. Yang,
- Y. Yang,
- Y.X. Yang,
- H. Ye,
- M. Ye,
- M.H. Ye,
- J.H. Yin,
- B.X. Yu,
- C.X. Yu,
- H.W. Yu,
- J.S. Yu,
- C.Z. Yuan,
- W.L. Yuan,
- Y. Yuan,
- A. Yuncu,
- A.A. Zafar,
- A. Zallo,
- Y. Zeng,
- B.X. Zhang,
- B.Y. Zhang,
- C. Zhang,
- C.C. Zhang,
- D.H. Zhang,
- H.H. Zhang,
- H.Y. Zhang,
- J.J. Zhang,
- J.L. Zhang,
- J.Q. Zhang,
- J.W. Zhang,
- J.Y. Zhang,
- J.Z. Zhang,
- K. Zhang,
- L. Zhang,
- S.H. Zhang,
- X.Y. Zhang,
- Y. Zhang,
- Y.N. Zhang,
- Y.H. Zhang,
- Y.T. 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,
- Q.W. Zhao,
- S.J. Zhao,
- T.C. Zhao,
- Y.B. Zhao,
- Z.G. Zhao,
- A. Zhemchugov,
- B. Zheng,
- J.P. Zheng,
- W.J. Zheng,
- Y.H. Zheng,
- B. Zhong,
- L. Zhou,
- Li Zhou,
- X. Zhou,
- X.K. Zhou,
- X.R. Zhou,
- X.Y. Zhou,
- K. Zhu,
- K.J. Zhu,
- S. Zhu,
- X.L. Zhu,
- Y.C. Zhu,
- Y.S. Zhu,
- Z.A. Zhu,
- J. Zhuang,
- L. Zotti,
- B.S. Zou,
- J.H. Zou
Affiliations
- M. Ablikim
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M.N. Achasov
- G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia
- X.C. Ai
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- O. Albayrak
- Carnegie Mellon University, Pittsburgh, PA 15213, USA
- M. Albrecht
- Bochum Ruhr-University, D-44780 Bochum, Germany
- D.J. Ambrose
- University of Rochester, Rochester, NY 14627, USA
- A. Amoroso
- University of Turin, I-10125, Turin, Italy
- F.F. An
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Q. An
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- J.Z. Bai
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- R. Baldini Ferroli
- INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy
- Y. Ban
- Peking University, Beijing 100871, People's Republic of China
- D.W. Bennett
- Indiana University, Bloomington, IN 47405, USA
- J.V. Bennett
- Carnegie Mellon University, Pittsburgh, PA 15213, USA
- M. Bertani
- INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy
- D. Bettoni
- INFN Sezione di Ferrara, I-44122, Ferrara, Italy
- J.M. Bian
- University of Minnesota, Minneapolis, MN 55455, USA
- F. Bianchi
- University of Turin, I-10125, Turin, Italy
- E. Boger
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- I. Boyko
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- R.A. Briere
- Carnegie Mellon University, Pittsburgh, PA 15213, USA
- H. Cai
- Wuhan University, Wuhan 430072, People's Republic of China
- X. Cai
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- O. Cakir
- Istanbul Aydin University, 34295 Sefakoy, Istanbul, Turkey
- A. Calcaterra
- INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy
- G.F. Cao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.A. Cetin
- Dogus University, 34722 Istanbul, Turkey
- J.F. Chang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- G. Chelkov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- G. Chen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.S. Chen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.Y. Chen
- Beihang University, Beijing 100191, People's Republic of China
- J.C. Chen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M.L. Chen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.J. Chen
- Nanjing University, Nanjing 210093, People's Republic of China
- X. Chen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.R. Chen
- Lanzhou University, Lanzhou 730000, People's Republic of China
- Y.B. Chen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.P. Cheng
- Huangshan College, Huangshan 245000, People's Republic of China
- X.K. Chu
- Peking University, Beijing 100871, People's Republic of China
- G. Cibinetto
- INFN Sezione di Ferrara, I-44122, Ferrara, Italy
- H.L. Dai
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.P. Dai
- Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
- A. Dbeyssi
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- D. Dedovich
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- Z.Y. Deng
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- A. Denig
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- I. Denysenko
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- M. Destefanis
- University of Turin, I-10125, Turin, Italy
- F. De Mori
- University of Turin, I-10125, Turin, Italy
- Y. Ding
- Liaoning University, Shenyang 110036, People's Republic of China
- C. Dong
- Nankai University, Tianjin 300071, People's Republic of China
- J. Dong
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.Y. Dong
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M.Y. Dong
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.X. Du
- Zhengzhou University, Zhengzhou 450001, People's Republic of China
- P.F. Duan
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- E.E. Eren
- Dogus University, 34722 Istanbul, Turkey
- J.Z. Fan
- Tsinghua University, Beijing 100084, People's Republic of China
- J. Fang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.S. Fang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X. Fang
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Y. Fang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L. Fava
- University of Eastern Piedmont, I-15121, Alessandria, Italy
- F. Feldbauer
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- G. Felici
- INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy
- C.Q. Feng
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- E. Fioravanti
- INFN Sezione di Ferrara, I-44122, Ferrara, Italy
- M. Fritsch
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- C.D. Fu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Q. Gao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.Y. Gao
- Beihang University, Beijing 100191, People's Republic of China
- Y. Gao
- Tsinghua University, Beijing 100084, People's Republic of China
- Z. Gao
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- I. Garzia
- INFN Sezione di Ferrara, I-44122, Ferrara, Italy
- C. Geng
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- K. Goetzen
- GSI Helmholtz Centre for Heavy Ion Research GmbH, D-64291 Darmstadt, Germany
- W.X. Gong
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- W. Gradl
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- M. Greco
- University of Turin, I-10125, Turin, Italy
- M.H. Gu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.T. Gu
- GuangXi University, Nanning 530004, People's Republic of China
- Y.H. Guan
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- A.Q. Guo
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.B. Guo
- Nanjing Normal University, Nanjing 210023, People's Republic of China
- Y. Guo
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.P. Guo
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- Z. Haddadi
- KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands
- A. Hafner
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- S. Han
- Wuhan University, Wuhan 430072, People's Republic of China
- Y.L. Han
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.Q. Hao
- Henan Normal University, Xinxiang 453007, People's Republic of China
- F.A. Harris
- University of Hawaii, Honolulu, HI 96822, USA
- K.L. He
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.Y. He
- Nankai University, Tianjin 300071, People's Republic of China
- T. Held
- Bochum Ruhr-University, D-44780 Bochum, Germany
- Y.K. Heng
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.L. Hou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- C. Hu
- Nanjing Normal University, Nanjing 210023, People's Republic of China
- H.M. Hu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.F. Hu
- University of Turin, I-10125, Turin, Italy
- T. Hu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y. Hu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- G.M. Huang
- Central China Normal University, Wuhan 430079, People's Republic of China
- G.S. Huang
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- H.P. Huang
- Wuhan University, Wuhan 430072, People's Republic of China
- J.S. Huang
- Henan Normal University, Xinxiang 453007, People's Republic of China
- X.T. Huang
- Shandong University, Jinan 250100, People's Republic of China
- Y. Huang
- Nanjing University, Nanjing 210093, People's Republic of China
- T. Hussain
- University of the Punjab, Lahore-54590, Pakistan
- Q. Ji
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Q.P. Ji
- Nankai University, Tianjin 300071, People's Republic of China
- X.B. Ji
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.L. Ji
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.L. Jiang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.W. Jiang
- Wuhan University, Wuhan 430072, People's Republic of China
- X.S. Jiang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.Y. Jiang
- Nankai University, Tianjin 300071, People's Republic of China
- J.B. Jiao
- Shandong University, Jinan 250100, People's Republic of China
- Z. Jiao
- Huangshan College, Huangshan 245000, People's Republic of China
- D.P. Jin
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S. Jin
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- T. Johansson
- Uppsala University, Box 516, SE-75120 Uppsala, Sweden
- A. Julin
- University of Minnesota, Minneapolis, MN 55455, USA
- N. Kalantar-Nayestanaki
- KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands
- X.L. Kang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.S. Kang
- Nankai University, Tianjin 300071, People's Republic of China
- M. Kavatsyuk
- KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands
- B.C. Ke
- Carnegie Mellon University, Pittsburgh, PA 15213, USA
- P. Kiese
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- R. Kliemt
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- B. Kloss
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- O.B. Kolcu
- Dogus University, 34722 Istanbul, Turkey
- B. Kopf
- Bochum Ruhr-University, D-44780 Bochum, Germany
- M. Kornicer
- University of Hawaii, Honolulu, HI 96822, USA
- W. Kuehn
- Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
- A. Kupsc
- Uppsala University, Box 516, SE-75120 Uppsala, Sweden
- J.S. Lange
- Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
- M. Lara
- Indiana University, Bloomington, IN 47405, USA
- P. Larin
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- C. Leng
- INFN, I-10125, Turin, Italy
- C. Li
- Uppsala University, Box 516, SE-75120 Uppsala, Sweden
- C.H. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Cheng Li
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- D.M. Li
- Zhengzhou University, Zhengzhou 450001, People's Republic of China
- F. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- G. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.B. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.C. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Jin Li
- Seoul National University, Seoul 151-747, Republic of Korea
- K. Li
- Shandong University, Jinan 250100, People's Republic of China
- K. Li
- Hangzhou Normal University, Hangzhou 310036, People's Republic of China
- Lei Li
- Beijing Institute of Petrochemical Technology, Beijing 102617, People's Republic of China
- P.R. Li
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- T. Li
- Shandong University, Jinan 250100, People's Republic of China
- W.D. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- W.G. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.L. Li
- Shandong University, Jinan 250100, People's Republic of China
- X.M. Li
- GuangXi University, Nanning 530004, People's Republic of China
- X.N. Li
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.Q. Li
- Nankai University, Tianjin 300071, People's Republic of China
- Z.B. Li
- Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
- H. Liang
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Y.F. Liang
- Sichuan University, Chengdu 610064, People's Republic of China
- Y.T. Liang
- Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
- G.R. Liao
- Guangxi Normal University, Guilin 541004, People's Republic of China
- D.X. Lin
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- B.J. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- C.X. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- F.H. Liu
- Shanxi University, Taiyuan 030006, People's Republic of China
- Fang Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Feng Liu
- Central China Normal University, Wuhan 430079, People's Republic of China
- H.B. Liu
- GuangXi University, Nanning 530004, People's Republic of China
- H.H. Liu
- Henan University of Science and Technology, Luoyang 471003, People's Republic of China
- H.H. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.M. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.B. Liu
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- J.P. Liu
- Wuhan University, Wuhan 430072, People's Republic of China
- J.Y. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- K. Liu
- Tsinghua University, Beijing 100084, People's Republic of China
- K.Y. Liu
- Liaoning University, Shenyang 110036, People's Republic of China
- L.D. Liu
- Peking University, Beijing 100871, People's Republic of China
- P.L. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Q. Liu
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- S.B. Liu
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- X. Liu
- Lanzhou University, Lanzhou 730000, People's Republic of China
- X.X. Liu
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Y.B. Liu
- Nankai University, Tianjin 300071, People's Republic of China
- Z.A. Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Zhiqiang Liu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Zhiqing Liu
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- H. Loehner
- KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands
- X.C. Lou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.J. Lu
- Huangshan College, Huangshan 245000, People's Republic of China
- J.G. Lu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- R.Q. Lu
- Hunan University, Changsha 410082, People's Republic of China
- Y. Lu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.P. Lu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- C.L. Luo
- Nanjing Normal University, Nanjing 210023, People's Republic of China
- M.X. Luo
- Zhejiang University, Hangzhou 310027, People's Republic of China
- T. Luo
- University of Hawaii, Honolulu, HI 96822, USA
- X.L. Luo
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M. Lv
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.R. Lyu
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- F.C. Ma
- Liaoning University, Shenyang 110036, People's Republic of China
- H.L. Ma
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.L. Ma
- Shandong University, Jinan 250100, People's Republic of China
- Q.M. Ma
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- T. Ma
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.N. Ma
- Nankai University, Tianjin 300071, People's Republic of China
- X.Y. Ma
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- F.E. Maas
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- M. Maggiora
- University of Turin, I-10125, Turin, Italy
- Y.J. Mao
- Peking University, Beijing 100871, People's Republic of China
- Z.P. Mao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S. Marcello
- University of Turin, I-10125, Turin, Italy
- J.G. Messchendorp
- KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands
- J. Min
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- T.J. Min
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- R.E. Mitchell
- Indiana University, Bloomington, IN 47405, USA
- X.H. Mo
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.J. Mo
- Central China Normal University, Wuhan 430079, People's Republic of China
- C. Morales Morales
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- K. Moriya
- Indiana University, Bloomington, IN 47405, USA
- N.Yu. Muchnoi
- G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia
- H. Muramatsu
- University of Minnesota, Minneapolis, MN 55455, USA
- Y. Nefedov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- F. Nerling
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- I.B. Nikolaev
- G.I. Budker Institute of Nuclear Physics SB RAS (BINP), Novosibirsk 630090, Russia
- Z. Ning
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S. Nisar
- COMSATS Institute of Information Technology, Lahore, Defence Road, Off Raiwind Road, 54000 Lahore, Pakistan
- S.L. Niu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.Y. Niu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.L. Olsen
- Seoul National University, Seoul 151-747, Republic of Korea
- Q. Ouyang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S. Pacetti
- INFN and University of Perugia, I-06100, Perugia, Italy
- P. Patteri
- INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy
- M. Pelizaeus
- Bochum Ruhr-University, D-44780 Bochum, Germany
- H.P. Peng
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- K. Peters
- GSI Helmholtz Centre for Heavy Ion Research GmbH, D-64291 Darmstadt, Germany
- J. Pettersson
- Uppsala University, Box 516, SE-75120 Uppsala, Sweden
- J.L. Ping
- Nanjing Normal University, Nanjing 210023, People's Republic of China
- R.G. Ping
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- R. Poling
- University of Minnesota, Minneapolis, MN 55455, USA
- V. Prasad
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.N. Pu
- Hunan University, Changsha 410082, People's Republic of China
- M. Qi
- Nanjing University, Nanjing 210093, People's Republic of China
- S. Qian
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- C.F. Qiao
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- L.Q. Qin
- Shandong University, Jinan 250100, People's Republic of China
- N. Qin
- Wuhan University, Wuhan 430072, People's Republic of China
- X.S. Qin
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y. Qin
- Peking University, Beijing 100871, People's Republic of China
- Z.H. Qin
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.F. Qiu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- K.H. Rashid
- University of the Punjab, Lahore-54590, Pakistan
- C.F. Redmer
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- H.L. Ren
- Hunan University, Changsha 410082, People's Republic of China
- M. Ripka
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- G. Rong
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Ch. Rosner
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- X.D. Ruan
- GuangXi University, Nanning 530004, People's Republic of China
- V. Santoro
- INFN Sezione di Ferrara, I-44122, Ferrara, Italy
- A. Sarantsev
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- M. Savrié
- University of Ferrara, I-44122, Ferrara, Italy
- K. Schoenning
- Uppsala University, Box 516, SE-75120 Uppsala, Sweden
- S. Schumann
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- W. Shan
- Peking University, Beijing 100871, People's Republic of China
- M. Shao
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- C.P. Shen
- Beihang University, Beijing 100191, People's Republic of China
- P.X. Shen
- Nankai University, Tianjin 300071, People's Republic of China
- X.Y. Shen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.Y. Sheng
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- W.M. Song
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.Y. Song
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S. Sosio
- University of Turin, I-10125, Turin, Italy
- S. Spataro
- University of Turin, I-10125, Turin, Italy
- G.X. Sun
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.F. Sun
- Henan Normal University, Xinxiang 453007, People's Republic of China
- S.S. Sun
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.J. Sun
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Y.Z. Sun
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.J. Sun
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.T. Sun
- Indiana University, Bloomington, IN 47405, USA
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- Sichuan University, Chengdu 610064, People's Republic of China
- X. Tang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- I. Tapan
- Uludag University, 16059 Bursa, Turkey
- E.H. Thorndike
- University of Rochester, Rochester, NY 14627, USA
- M. Tiemens
- KVI-CART, University of Groningen, NL-9747 AA Groningen, The Netherlands
- M. Ullrich
- Justus Liebig University Giessen, II. Physikalisches Institut, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
- I. Uman
- Dogus University, 34722 Istanbul, Turkey
- G.S. Varner
- University of Hawaii, Honolulu, HI 96822, USA
- B. Wang
- Nankai University, Tianjin 300071, People's Republic of China
- B.L. Wang
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- D. Wang
- Peking University, Beijing 100871, People's Republic of China
- D.Y. Wang
- Peking University, Beijing 100871, People's Republic of China
- K. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.L. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.S. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M. Wang
- Shandong University, Jinan 250100, People's Republic of China
- P. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- P.L. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.G. Wang
- Peking University, Beijing 100871, People's Republic of China
- W. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.F. Wang
- Tsinghua University, Beijing 100084, People's Republic of China
- Y.D. Wang
- Helmholtz Institute Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- Y.F. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.Q. Wang
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- Z. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.G. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.H. Wang
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Z.Y. Wang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- T. Weber
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- D.H. Wei
- Guangxi Normal University, Guilin 541004, People's Republic of China
- J.B. Wei
- Peking University, Beijing 100871, People's Republic of China
- P. Weidenkaff
- Johannes Gutenberg University of Mainz, Johann-Joachim-Becher-Weg 45, D-55099 Mainz, Germany
- S.P. Wen
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- U. Wiedner
- Bochum Ruhr-University, D-44780 Bochum, Germany
- M. Wolke
- Uppsala University, Box 516, SE-75120 Uppsala, Sweden
- L.H. Wu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z. Wu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L.G. Xia
- Tsinghua University, Beijing 100084, People's Republic of China
- Y. Xia
- Hunan University, Changsha 410082, People's Republic of China
- D. Xiao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H. Xiao
- University of South China, Hengyang 421001, People's Republic of China
- Z.J. Xiao
- Nanjing Normal University, Nanjing 210023, People's Republic of China
- Y.G. Xie
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Q.L. Xiu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- G.F. Xu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L. Xu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Q.J. Xu
- Hangzhou Normal University, Hangzhou 310036, People's Republic of China
- Q.N. Xu
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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- Soochow University, Suzhou 215006, People's Republic of China
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- University of Science and Technology of China, Hefei 230026, People's Republic of China
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- University of Science and Technology of China, Hefei 230026, People's Republic of China
- W.C. Yan
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Y.H. Yan
- Hunan University, Changsha 410082, People's Republic of China
- H.J. Yang
- Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China
- H.X. Yang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L. Yang
- Wuhan University, Wuhan 430072, People's Republic of China
- Y. Yang
- Central China Normal University, Wuhan 430079, People's Republic of China
- Y.X. Yang
- Guangxi Normal University, Guilin 541004, People's Republic of China
- H. Ye
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M. Ye
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M.H. Ye
- China Center of Advanced Science and Technology, Beijing 100190, People's Republic of China
- J.H. Yin
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- B.X. Yu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- C.X. Yu
- Nankai University, Tianjin 300071, People's Republic of China
- H.W. Yu
- Peking University, Beijing 100871, People's Republic of China
- J.S. Yu
- Lanzhou University, Lanzhou 730000, People's Republic of China
- C.Z. Yuan
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- W.L. Yuan
- Nanjing University, Nanjing 210093, People's Republic of China
- Y. Yuan
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- A. Yuncu
- Dogus University, 34722 Istanbul, Turkey
- A.A. Zafar
- University of the Punjab, Lahore-54590, Pakistan
- A. Zallo
- INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy
- Y. Zeng
- Hunan University, Changsha 410082, People's Republic of China
- B.X. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- B.Y. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- C. Zhang
- Nanjing University, Nanjing 210093, People's Republic of China
- C.C. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- D.H. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- H.H. Zhang
- Sun Yat-Sen University, Guangzhou 510275, People's Republic of China
- H.Y. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.J. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.L. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.Q. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.W. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.Y. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.Z. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- K. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.H. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.Y. Zhang
- Shandong University, Jinan 250100, People's Republic of China
- Y. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.N. Zhang
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Y.H. Zhang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.T. Zhang
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Yu Zhang
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Z.H. Zhang
- Central China Normal University, Wuhan 430079, People's Republic of China
- Z.P. Zhang
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Z.Y. Zhang
- Wuhan University, Wuhan 430072, People's Republic of China
- G. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.W. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.Y. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.Z. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Lei Zhao
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Ling Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- M.G. Zhao
- Nankai University, Tianjin 300071, People's Republic of China
- Q. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Q.W. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S.J. Zhao
- Zhengzhou University, Zhengzhou 450001, People's Republic of China
- T.C. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Y.B. Zhao
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.G. Zhao
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- A. Zhemchugov
- Joint Institute for Nuclear Research, 141980 Dubna, Moscow region, Russia
- B. Zheng
- University of South China, Hengyang 421001, People's Republic of China
- J.P. Zheng
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- W.J. Zheng
- Shandong University, Jinan 250100, People's Republic of China
- Y.H. Zheng
- University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- B. Zhong
- Nanjing Normal University, Nanjing 210023, People's Republic of China
- L. Zhou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Li Zhou
- Nankai University, Tianjin 300071, People's Republic of China
- X. Zhou
- Wuhan University, Wuhan 430072, People's Republic of China
- X.K. Zhou
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- X.R. Zhou
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- X.Y. Zhou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- K. Zhu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- K.J. Zhu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- S. Zhu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- X.L. Zhu
- Tsinghua University, Beijing 100084, People's Republic of China
- Y.C. Zhu
- University of Science and Technology of China, Hefei 230026, People's Republic of China
- Y.S. Zhu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- Z.A. Zhu
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J. Zhuang
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- L. Zotti
- University of Turin, I-10125, Turin, Italy
- B.S. Zou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- J.H. Zou
- Institute of High Energy Physics, Beijing 100049, People's Republic of China
- DOI
- https://doi.org/10.1016/j.physletb.2017.09.067
- Journal volume & issue
-
Vol. 774,
no. C
pp. 252 – 257
Abstract
Using a data set of 2.93 fb−1 taken at a center-of-mass energy s=3.773 GeV with the BESIII detector at the BEPCII collider, we perform a search for an extra U(1) gauge boson, also denoted as a dark photon. We examine the initial state radiation reactions e+e−→e+e−γISR and e+e−→μ+μ−γISR for this search, where the dark photon would appear as an enhancement in the invariant mass distribution of the leptonic pairs. We observe no obvious enhancement in the mass range between 1.5 and 3.4 GeV/c2 and set a 90% confidence level upper limit on the mixing strength of the dark photon and the Standard Model photon. We obtain a competitive limit in the tested mass range.
Keywords