Constraints on Ultraheavy Dark Matter Properties from Dwarf Spheroidal Galaxies with LHAASO Observations

作者：Z. Cao, F. Aharonian, Qier An, Axikegu, Y. Bai, Y. W. Bao, D. Bastieri, Xiao-Jun Bi, Y. J. Bi, J. T. Cai, Qing Cao, Weiwei Cao, Zhe Cao, Jiang Chang, J. F. Chang, A. M. Chen, E. S. Chen, Liang Chen, Lin Chen, Long Chen, M. J. Chen, M. L. Chen, Q. H. Chen, S. H. Chen, S. Z. Chen, T. L. Chen, Ye Chen, Ning Cheng, Yaodong Cheng, Maxwell Cui, S. W. Cui, X. H. Cui, Y. D. Cui, B. Z. Dai, H. L. Dai, Zi-Gao Dai, Danzengluobu Danzengluobu, D. della Volpe, X. Q. Dong, K. K. Duan, J. H. Fan, Y. Z. Fan, Jun Fang, Kai Fang, Chunsheng Feng, L. Feng, S. H. Feng, X. T. Feng, Y. L. Feng, S. Gabici, Bo Gao, C. D. Gao, L. Q. Gao, Qinhe Gao, Wei Gao, W. K. Gao, M. M. Ge, Li‐Sheng Geng, Gwenael Giacinti, G. H. Gong, Q. B. Gou, M. H. Gu, Fulai Guo, X. L. Guo, Y. Q. Guo, Y. Y. Guo, Y. A. Han, H. H. He, Hao-Ning He, Jiawei He, Xinyu He, Y. He, Matthieu Heller, Y. K. Hor, B. W. Hou, C. Hou, Xin Hou, H. B. Hu, Q. Hu, S. C. Hu, Dezhi Huang, T. Q. Huang, W. J. Huang, X. T. Huang, X. Y. Huang, Yuxiang Huang, Zhongjie Huang, X. L. Ji, H. Y. Jia, K. Jia, K. Jiang, X. W. Jiang, Z. J. Jiang, Min Jin, M. M. Kang, T. Ke, D. Kuleshov, K. Kurinov, B. B. Li, Cheng Li, Cong Li, Dongyue Li, Fei Li, H. B. Li, Cong Li, H. Y. Li, Jian Li, Jian Li, Jie Li, Ke Li, W. L. Li, Wenwen Li, X. R. Li, Xin Li, Yanqi Li, Zhe Li, Zhuo Li, E. W. Liang, Liang Yu, Shangrong Lin, B. Liu, Cheng Liu, D. Liu, Hao Liu, Haowen Liu, Jian Li, Jianglai Liu, J. Y. Liu, M. Y. Liu, R. Y. Liu, S. M. Liu, Wei Liu, Yaping Liu, Y. N. Liu, R. Lu, Q. Luo, H. K. Lv, B. Q., L. L., X. H., J. R. Mao, Z. Min, W. Mitthumsiri, Hui-Jun Mu, Y. C. Nan, A. Neronov, Z. W. Ou, B. Y. Pang, P. Pattarakijwanich, Z. Y. Pei, M. Qi, Y. Q. Qi, Bing-Qiang Qiao, Jiajun Qin, D. Ruffolo, A. Sáiz, D. Semikoz, C. Y. Shao, L. Shao, O. Shchegolev, X. D. Sheng, Fengchun Shu, H. C. Song, Yu. V. Stenkin, V. Stepanov, Y. Su, Q. N. Sun, X. N. Sun, Zhenyu Sun, P. H. T. Tam, Qing-Wen Tang, Z. Tang, Wenwu Tian, Chenwei Wang, Chuxuan Wang, Guofeng Wang, H. G. Wang, H. H. Wang, J. C. Wang, Kang Wang, L. P. Wang, L. Y. Wang, P. H. Wang, Rong Wang, W. Wang, X. G. Wang, X. Wang, Y. Wang, Y. D. Wang, Yingjie Wang, Zhongxiang Wang, Z. X. Wang, Zhen Wang, Zheng Wang, D. M. Wei, J. J. Wei, Y. J. Wei, T. Wen, C. Y. Wu, H. R. Wu, S. Wu, X. F. Wu, Yuping Wu, Shao-Qiang Xi, Jun‐Qing Xia, J. Xia, G. M. Xiang, D. X. Xiao, Guoqing Xiao, G. G. Xin, Y. L. Xin, Y. Xing, Z. Xiong, D. L. Xu, R. F. Xu, Rong Xu, Weiyun Xu, W. Xu, Dahai Yan, Jun Yan, T. Yan, Chaoran Yang, Fang Yang, Fei Yang, H. W. Yang, J. Y. Yang, Lili Yang, Min Yang, Ruizhi Yang, S. B. Yang, Yuhua Yao, Z. G. Yao, Y. M. Ye, L. Q. Yin, N. Yin, X. H. You, Z. Y. You, Y. H. Yu, Qiang Yuan, H. Yue, Hui‐Yi Zeng, T. X. Zeng, W. Zeng, M. Zha, B. B. Zhang, F. Zhang, Hai-Ming Zhang, H. Y. Zhang, J. L. Zhang, L. X. Zhang, Li Zhang, P. F. Zhang, P. P. Zhang, R. Zhang, S. B. Zhang, S. R. Zhang, Siqi Zhang, X. Zhang, Xu Zhang, Y. F. Zhang, Yi Zhang, Yong‐Wei Zhang, Bing Zhao, Jinmiao Zhao, Lei Zhao, L. Z. Zhao, S. P. Zhao, Fa‐Kun Zheng, B. Zhou, Hong‐Cai Zhou, J. N. Zhou, Meng Zhou, P. Zhou, Rong Zhou, Xiaojuan Zhou, C. G. Zhu, F. R. Zhu, H. Zhu, Kai Zhu, X. Zuo · 发表于：Physical Review Letters · 年份：2024 · DOI：10.1103/physrevlett.133.061001 · 被引用次数：14 · 研究领域：Dark Matter and Cosmic Phenomena、Astrophysics and Cosmic Phenomena、Particle physics theoretical and experimental studies

In this Letter we try to search for signals generated by ultraheavy dark matter at the Large High Altitude Air Shower Observatory (LHAASO) data. We look for possible γ rays by dark matter annihilation or decay from 16 dwarf spheroidal galaxies in the field of view of the LHAASO. Dwarf spheroidal galaxies are among the most promising targets for indirect detection of dark matter that have low fluxes of astrophysical γ-ray background while having large amount of dark matter. By analyzing more than 700 days of observational data at LHAASO, no significant dark matter signal from 1 TeV to 1 EeV is detected. Accordingly we derive the most stringent constraints on the ultraheavy dark matter annihilation cross section up to EeV. The constraints on the lifetime of dark matter in decay mode are also derived.