High energy window for probing dark matter with cosmic-ray antideuterium and antihelium

作     者：Yu-Chen Ding Nan Li Chun-Cheng Wei Yu-Feng Zhou 丁雨辰;李楠;魏春成;周宇峰

作者机构：CAS Key Laboratory of Theoretical PhysicsInstitute of Theoretical PhysicsChinese Academy of SciencesBeijing 100190China University of Chinese Academy of SciencesBeijing 100049China School of Fundamental Physics and Mathematical SciencesHangzhou Institute for Advanced StudyUCASand International Centre for Theoretical Physics Asia-PacificBeijing/HangzhouChina Key Laboratory of Particle Acceleration Physics and TechnologyInstitute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China 

出 版 物：《Chinese Physics C》 (中国物理C（英文版）)

年 卷 期：2021年第45卷第6期

页      面：188-201页

核心收录：

学科分类：0709[理学-地质学] 07[理学] 0708[理学-地球物理学] 0804[工学-仪器科学与技术] 070401[理学-天体物理] 0827[工学-核科学与技术] 0703[理学-化学] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Supported in part by the National Key R&D Program of China(2017YFA0402204) by the National Natural Science Foundation of China(NSFC)(11825506,11821505,U1738209,11851303,11947302) 

主　　题：dark matter coalescence model antideuterium antihelium 

摘      要：Cosmic-ray(CR)anti-nuclei are often considered important observables for indirect dark matter(DM)detection at low kinetic energies,below GeV per *** the primary CR fluxes drop quickly towards high energies,the secondary anti-nuclei in CR are expected to be significantly suppressed in high energy regions(≥10 GeV per nucleon).If DM particles are heavy,the annihilation productions of DM can be highly boosted,and thus the fluxes of anti-nuclei produced by DM annihilation may exceed the secondary background at high energies,which opens a high energy window for indirect DM *** investigate the possibility of detecting heavy DM particles which annihilate into high energy *** use the Monte Carlo generators PYTHIA,EPOS-LHC and DPMJET and the coalescence model to simulate the production of anti-nuclei,and constrain the DM annihilation cross-sections by using the AMS-02 and HAWC antiproton data and the HESS galactic center-ray *** find that the conclusion depends on the choice of DM density *** the“Coredtype profile with a DM particle mass≥10 TeV,the contributions from DM annihilation can exceed the secondary background in high energy regions,which opens the high energy window,while for the“Cuspytype profile,the excess disappears.