M. S. Cai^10,11, E. Casilli^6,7, J. Chang^10,11, D. Y. Chen¹⁰, J. L. Chen¹², Z. F. Chen¹², Z. X. Chen^12,8, P. Coppin⁵, M. Y. Cui¹⁰, T. S. Cui¹³, I. De Mitri^6,7, F. de Palma^1,2, A. Di Giovanni^6,7, T. K. Dong¹⁰, Z. X. Dong¹³, G. Donvito¹⁴, J. L. Duan¹², K. K. Duan¹⁰, R. R. Fan⁹, Y. Z. Fan^10,11, F. Fang¹², K. Fang⁹, C. Q. Feng^3,4, L. Feng¹⁰, S. Fogliacco^6,7, J. M. Frieden^5,*, P. Fusco^14,15, M. Gao⁹, F. Gargano¹⁴, E. Ghose^1,2, K. Gong⁹, Y. Z. Gong¹⁰, D. Y. Guo⁹, J. H. Guo^10,11, S. X. Han¹³, Y. M. Hu¹⁰, G. S. Huang^3,4, X. Y. Huang^10,11, Y. Y. Huang¹⁰, M. Ionica¹⁶, L. Y. Jiang¹⁰, W. Jiang¹⁰, Y. Z. Jiang^16,†, J. Kong¹², A. Kotenko⁵, D. Kyratzis^6,7, S. J. Lei¹⁰, B. Li^10,11, W. L. Li¹³, W. H. Li¹⁰, X. Li^10,11, X. Q. Li¹³, Y. M. Liang¹³, C. M. Liu¹⁶, H. Liu¹⁰, J. Liu¹², S. B. Liu^3,4, Y. Liu¹⁰, F. Loparco^14,15, M. Ma¹³, P. X. Ma¹⁰, T. Ma¹⁰, X. Y. Ma¹³, G. Marsella^1,2,‡, M. N. Mazziotta¹⁴, D. Mo¹², Y. Nie^3,4, X. Y. Niu¹², A. Parenti^6,7,§, W. X. Peng⁹, X. Y. Peng¹⁰, C. Perrina^5,*, E. Putti-Garcia⁵, R. Qiao⁹, J. N. Rao¹³, Y. Rong^3,4, A. Ruina⁵, R. Sarkar^6,7, P. Savina^6,7, Z. Shangguan¹³, W. H. Shen¹³, Z. Q. Shen¹⁰, Z. T. Shen^3,4, L. Silveri^6,7,∥, J. X. Song¹³, M. Stolpovskiy⁵, H. Su¹², M. Su¹⁷, H. R. Sun^3,4, Z. Y. Sun¹², A. Surdo², X. J. Teng¹³, A. Tykhonov⁵, G. F. Wang^3,4, J. Z. Wang⁹, L. G. Wang¹³, 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. Wu⁹, J. Wu^10,11, S. S. Wu¹³, X. Wu⁵, Z. Q. Xia¹⁰, Z. Xiong^6,7, E. H. Xu^3,4, H. T. Xu¹³, J. Xu¹⁰, Z. H. Xu¹², Z. Z. Xu^3,4, Z. L. Xu¹⁰, G. F. Xue¹³, M. Y. Yan^3,4, H. B. Yang¹², P. Yang¹², Y. Q. Yang¹², H. J. Yao¹², Y. H. Yu¹², Q. Yuan^10,11, C. Yue¹⁰, J. J. Zang^10,¶, S. X. Zhang¹², W. Z. Zhang¹³, Yan Zhang¹⁰, Y. P. Zhang¹², Yi Zhang^10,11, Y. J. Zhang¹², Y. Q. Zhang¹⁰, Y. L. Zhang^3,4, Z. Zhang¹⁰, Z. Y. Zhang^3,4, C. Zhao^3,4, H. Y. Zhao¹², X. F. Zhao¹³, C. Y. Zhou¹³, X. Zhu^10,**, and Y. Zhu¹³ (DAMPE Collaboration^††)

• ¹Dipartimento di Matematica e Fisica E. De Giorgi, Università 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, Geneva CH-1211, 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
• ⁸University of Chinese Academy of Sciences, Beijing 100049, China
• ⁹Particle Astrophysics Division, Institute of High Energy Physics, Chinese Academy of Sciences, 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
• ¹²Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
• ¹³National Space Science Center, Chinese Academy of Sciences, Beijing 100190, China
• ¹⁴Istituto Nazionale di Fisica Nucleare, Sezione di Bari, via Orabona 4, I-70126 Bari, Italy
• ¹⁵Dipartimento di Fisica “M. Merlin,” dell’Università e del Politecnico di Bari, via Amendola 173, I-70126 Bari, Italy
• ¹⁶Istituto Nazionale di Fisica Nucleare (INFN) - Sezione di Perugia, I-06123 Perugia, Italy
• ¹⁷Department of Physics and Laboratory for Space Research, University of Hong Kong, Hong Kong SAR 999077, China
• ¹⁸Shandong Institute of Advanced Technology, Jinan 250100, China

• ^*Present address: Institute of Physics, Ecole Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland.
• ^†Also at Dipartimento di Fisica e Geologia, Università degli Studi di Perugia, I-06123 Perugia, Italy.
• ^‡Present address: Dipartimento di Fisica e Chimica “E. Segrè,” Università degli Studi di Palermo, I-90128 Palermo, Italy.
• ^§Present address: Inter-university Institute for High Energies, Universitè Libre de Bruxelles, B-1050 Brussels, Belgium.
• ^∥Present address: 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.
• ^**Also at School of Computing, Nanjing University of Posts and Telecommunications, Nanjing 210023, China.
• ^††Contact author: dampe@pmo.ac.cn