M. S. Cai^10,11, E. Casilli^1,2, E. Catanzani¹², J. Chang^10,11, D. Y. Chen¹⁰, J. L. Chen¹³, Z. F. Chen¹³, Z. X. Chen¹³, P. Coppin⁵, M. Y. Cui¹⁰, T. S. Cui¹⁴, Y. X. Cui^10,11, I. De Mitri^6,7, F. de Palma^1,2, A. Di Giovanni^6,7, T. K. Dong¹⁰, Z. X. Dong¹⁴, G. Donvito¹⁵, J. L. Duan¹³, K. K. Duan¹⁰, R. R. Fan⁸, Y. Z. Fan^10,11, F. Fang¹³, K. Fang⁸, C. Q. Feng^3,4, L. Feng^10,11, J. M. Frieden^5,†, P. Fusco^15,16, M. Gao⁸, F. Gargano¹⁵, E. Ghose^1,2, K. Gong⁸, Y. Z. Gong¹⁰, D. Y. Guo⁸, J. H. Guo^10,11, S. X. Han¹⁴, Y. M. Hu¹⁰, G. S. Huang^3,4, X. Y. Huang^10,11, Y. Y. Huang¹⁰, M. Ionica¹², L. Y. Jiang¹⁰, Y. Z. Jiang¹², W. Jiang¹⁰, J. Kong¹³, A. Kotenko⁵, D. Kyratzis^6,7, S. J. Lei¹⁰, M. B. Li⁵, W. H. Li^10,11, W. L. Li¹⁴, X. Li^10,11, X. Q. Li¹⁴, Y. M. Liang¹⁴, C. M. Liu¹², H. Liu¹⁰, J. Liu¹³, S. B. Liu^3,4, Y. Liu¹⁰, F. Loparco^15,16, C. N. Luo^10,11, M. Ma¹⁴, P. X. Ma¹⁰, T. Ma¹⁰, X. Y. Ma¹⁴, G. Marsella^1,2,‡, M. N. Mazziotta¹⁵, D. Mo¹³, Y. Nie^3,4, X. Y. Niu¹³, A. Parenti^6,7,§, W. X. Peng⁸, X. Y. Peng¹⁰, C. Perrina⁵, E. Putti-Garcia⁵, R. Qiao⁸, J. N. Rao¹⁴, Y. Rong^3,4, R. Sarkar^6,7, P. Savina^6,7, A. Serpolla⁵, Z. Shangguan¹⁴, W. H. Shen¹⁴, Z. Q. Shen¹⁰, Z. T. Shen^3,4, L. Silveri^6,7,∥, J. X. Song¹⁴, H. Su¹³, M. Su¹⁷, H. R. Sun^3,4, Z. Y. Sun¹³, A. Surdo², X. J. Teng¹⁴, A. Tykhonov⁵, G. F. Wang^3,4, J. Z. Wang⁸, L. G. Wang¹⁴, S. Wang¹⁰, X. L. Wang^3,4, Y. F. Wang^3,4, D. M. Wei^10,11, J. J. Wei¹⁰, Y. F. Wei^3,4, D. Wu⁸, J. Wu^10,11,*, S. S. Wu¹⁴, X. Wu⁵, Z. Q. Xia¹⁰, Z. Xiong^6,7, E. H. Xu^3,4, H. T. Xu¹⁴, J. Xu¹⁰, Z. H. Xu¹³, Z. L. Xu¹⁰, Z. Z. Xu^3,4, G. F. Xue¹⁴, H. B. Yang¹³, P. Yang¹³, Y. Q. Yang¹³, H. J. Yao¹³, M. Y. Yan^3,4, Y. H. Yu¹³, Q. Yuan^10,11, C. Yue¹⁰, J. J. Zang^10,¶, S. X. Zhang¹³, W. Z. Zhang¹⁴, Y. Zhang¹⁰, Y. Zhang^10,11, Y. J. Zhang¹³, Y. L. Zhang^3,4, Y. P. Zhang¹³, Y. Q. Zhang¹⁰, Z. Zhang¹⁰, Z. Y. Zhang^3,4, C. Zhao^3,4, H. Y. Zhao¹³, X. F. Zhao¹⁴, C. Y. Zhou¹⁴, and Y. Zhu¹⁴ (DAMPE Collaboration^**)

• ¹Dipartimento di Matematica e Fisica E. De Giorgi, Universitá del Salento, I-73100, Lecce, Italy
• ²Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100, Lecce, Italy
• ³State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
• ⁴Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
• ⁵Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
• ⁶Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L’Aquila, Italy
• ⁷Istituto Nazionale di Fisica Nucleare (INFN)- Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L’Aquila, Italy
• ⁸Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
• ⁹University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China
• ¹⁰Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
• ¹¹School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
• ¹²Istituto Nazionale di Fisica Nucleare (INFN)- Sezione di Perugia, I-06123 Perugia, Italy
• ¹³Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
• ¹⁴National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
• ¹⁵Istituto Nazionale di Fisica Nucleare (INFN)- Sezione di Bari, I-70125, Bari, Italy
• ¹⁶Dipartimento di Fisica “M. Merlin” dell’Universitá e del Politecnico di Bari, I-70126, Bari, Italy
• ¹⁷Department of Physics and Laboratory for Space Research, the University of Hong Kong, Pok Fu Lam, Hong Kong SAR, China

• ^*Deceased.
• ^†Now at Institute of Physics, Ecole Polytechnique Fédérale de Lausanne(EPFL), CH-1015 Lausanne, Switzerland.
• ^‡Now at Dipartimento di Fisica e Chimica “E.Segré,” Universitá degli Studi diPalermo, via delle Scienze ed. 17, I-90128 Palermo, Italy.
• ^§Now at Inter-university Institute for High Energies, Universié Libre de Bruxelles, B-1050 Brussels, Belgium.
• ^∥Now at New York University Abu Dhabi, Saadiyat Island, Abu Dhabi 129188, United Arab Emirates.
• ^¶Also at School of Physics and Electronic Engineering, Linyi University, Linyi 276000, China.
• ^**Contact author: dampe@pmo.ac.cn