Comparison of Proton Shower Developments in the BGO Calorimeter of the Dark Matter Particle Explorer between GEANT4 and FLUKA Simulations
Wei Jiang1,2, Chuan Yue1*, Ming-Yang Cui1*, Xiang Li1, Qiang Yuan1,2, Francesca Alemanno3,4, Paolo Bernardini5,6, Giovanni Catanzani7,8, Zhan-Fang Chen1,2, Ivan De Mitri3,4, Tie-Kuang Dong1, Giacinto Donvito9, David Francois Droz10, Piergiorgio Fusco9,11, Fabio Gargano9, Dong-Ya Guo12, Dimitrios Kyratzis3,4, Shi-Jun Lei1, Yang Liu1, Francesco Loparco9,11, Peng-Xiong Ma1,2, Giovanni Marsella6,12, Mario Nicola Mazziotta9, Xu Pan1,2, Wen-Xi Peng13, Antonio Surdo6, Andrii Tykhonov10, Yi-Yeng Wei14, Yu-Hong Yu15, Jing-Jing Zang1, Ya-Peng Zhang15, Yong-Jie Zhang15, and Yun-Long Zhang14
1Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China 2School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China 3Gran Sasso Science Institute (GSSI), Viale F. Crispi 7, I-67100, L'Aquila, Italy 4Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali del Gran Sasso, Via G.Acitelli 22, I-67100, Assergi, L'Aquila, Italy 5Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy 6Istituto Nazionale di Fisica Nucleare (INFN)–Sezione di Lecce, I-73100 Lecce, Italy 7INFN Section of Perugia, I-06100 Perugia, Italy 8University of Perugia, I-06100 Perugia, Italy 9Istituto Nazionale di Fisica Nucleare (INFN)–Sezione di Bari, I-70125, Bari, Italy 10Department of Nuclear and Particle Physics, University of Geneva, CH-1211, Switzerland 11Dipartimento Interateneo “M. Merlin” dell'Università degli Studi di Bari e del Politecnico di Bari, I-70125, Bari, Italy 12Dipartimento di Fisica e Chimica “E. Segrè”, via delle Scienze Edificio 17, Università Degli Studi di Palermo, I-90128, Palermo, Italy 13Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China 14State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China 15Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Abstract：The DArk Matter Particle Explorer (DAMPE) is a satellite-borne detector for high-energy cosmic rays and $\gamma$-rays. To fully understand the detector performance and obtain reliable physical results, extensive simulations of the detector are necessary. The simulations are particularly important for the data analysis of cosmic ray nuclei, which relies closely on the hadronic and nuclear interactions of particles in the detector material. Widely adopted simulation softwares include the GEANT4 and FLUKA, both of which have been implemented for the DAMPE simulation tool. Here we describe the simulation tool of DAMPE and compare the results of proton shower properties in the calorimeter from the two simulation softwares. Such a comparison gives an estimate of the most significant uncertainties of our proton spectral analysis.
2020, Vol. 37 
