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

被引：2

作者：

Cao, Zhen ^{[1
,2
,3
,4
,5
]}

Aharonian, F. ^{[6
,7
]}

An, Q. ^{[8
,9
]}

Axikegu ^{[10
,11
]}

Bai, Y. X. ^{[1
,2
,3
,5
]}

Bao, Y. W. ^{[12
]}

Bastieri, D. ^{[13
]}

Bi, X. J. ^{[1
,2
,3
,4
,5
]}

Bi, Y. J. ^{[1
,2
,3
,5
]}

Cai, J. T. ^{[13
]}

Cao, Q. ^{[14
]}

Cao, W. Y. ^{[9
]}

Cao, Zhe ^{[8
,9
]}

Chang, J. ^{[15
,16
]}

Chang, J. F. ^{[1
,2
,3
,5
,8
]}

Chen, A. M. ^{[17
,18
]}

Chen, E. S. ^{[1
,2
,3
,4
,5
]}

Chen, Liang ^{[19
]}

Chen, Lin ^{[10
,11
]}

Chen, Long ^{[10
,11
]}

Chen, M. J. ^{[1
,2
,3
,5
]}

Chen, M. L. ^{[1
,2
,3
,5
,8
]}

Chen, Q. H. ^{[10
,11
]}

Chen, S. H. ^{[1
,2
,3
,4
,5
]}

Chen, S. Z. ^{[1
,2
,3
,5
]}

Chen, T. L. ^{[20
]}

Chen, Y. ^{[12
]}

Cheng, N. ^{[1
,2
,3
,5
]}

Cheng, Y. D. ^{[1
,2
,3
,5
]}

Cui, M. Y. ^{[15
,16
]}

Cui, S. W. ^{[14
]}

Cui, X. H. ^{[21
]}

Cui, Y. D. ^{[22
,23
,24
,25
,26
,27
]}

Dai, B. Z. ^{[28
]}

Dai, H. L. ^{[1
,2
,3
,5
,8
]}

Dai, Z. G. ^{[9
]}

Danzengluobu ^{[20
]}

della Volpe, D. ^{[29
]}

Dong, X. Q. ^{[1
,2
,3
,4
,5
]}

Duan, K. K. ^{[15
,16
]}

Fan, J. H. ^{[13
]}

Fan, Y. Z. ^{[15
,16
]}

Fang, J. ^{[28
]}

Fang, K. ^{[1
,2
,3
,5
]}

Feng, C. F. ^{[30
]}

Feng, L. ^{[15
,16
]}

Feng, S. H. ^{[1
,2
,3
,5
]}

Feng, X. T. ^{[30
]}

Feng, Y. L. ^{[20
]}

Gabici, S. ^{[31
]}

机构：

[1] Chinese Acad Sci, Inst High Energy Phys, Key Lab Particle Astrophys, Beijing 100049, Peoples R China

[2] Chinese Acad Sci, Inst High Energy Phys, Expt Phys Div, Beijing 100049, Peoples R China

[3] Chinese Acad Sci, Inst High Energy Phys, Ctr Comp, Beijing 100049, Peoples R China

[4] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

[5] Tianfu Cosm Ray Res Ctr, Chengdu 610000, Sichuan, Peoples R China

[6] Dublin Inst Adv Studies, 31 Fitzwilliam Pl, Dublin 2, Ireland

[7] Max Planck Inst Nucl Phys, POB 103980, D-69029 Heidelberg, Germany

[8] State Key Lab Particle Detect & Elect, Hefei, Anhui, Peoples R China

[9] Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China

[10] Southwest Jiaotong Univ, Sch Phys Sci & Technol, Chengdu 610031, Sichuan, Peoples R China

[11] Southwest Jiaotong Univ, Sch Informat Sci & Technol, Chengdu 610031, Sichuan, Peoples R China

[12] Nanjing Univ, Sch Astron & Space Sci, Nanjing 210023, Jiangsu, Peoples R China

[13] Guangzhou Univ, Ctr Astrophys, Guangzhou 510006, Guangdong, Peoples R China

[14] Hebei Normal Univ, Shijiazhuang 050024, Hebei, Peoples R China

[15] Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Purple Mt Observ, Nanjing 210023, Jiangsu, Peoples R China

[16] Chinese Acad Sci, Key Lab Radio Astron, Purple Mt Observ, Nanjing 210023, Jiangsu, Peoples R China

[17] Shanghai Jiao Tong Univ, Tsung Dao Lee Inst, Shanghai 200240, Peoples R China

[18] Shanghai Jiao Tong Univ, Sch Phys & Astron, Shanghai 200240, Peoples R China

[19] Chinese Acad Sci, Key Lab Res Galaxies & Cosmol, Shanghai Astron Observ, Shanghai 200030, Peoples R China

[20] Tibet Univ, Minist Educ, Key Lab Cosm Rays, Lhasa 850000, Tibet, Peoples R China

[21] Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China

[22] Sun Yat Sen Univ, Sch Phys & Astron Zhuhai, Zhuhai 519000, Guangdong, Peoples R China

[23] Sun Yat Sen Univ, Sch Phys Guangzhou, Zhuhai 519000, Guangdong, Peoples R China

[24] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol Zhuhai, Zhuhai 519000, Guangdong, Peoples R China

[25] Sun Yat Sen Univ, Sch Phys & Astron Zhuhai, Guangzhou 510275, Guangdong, Peoples R China

[26] Sun Yat Sen Univ, Sch Phys Guangzhou, Guangzhou 510275, Guangdong, Peoples R China

[27] Sun Yat Sen Univ, Sino French Inst Nucl Engn & Technol Zhuhai, Guangzhou 510275, Guangdong, Peoples R China

[28] Yunnan Univ, Sch Phys & Astron, Kunming 650091, Yunnan, Peoples R China

[29] Univ Geneva, Dept Phys Nucl & Corpusculaire, Fac Sci, 24 Quai Ernest Ansermet, CH-1211 Geneva, Switzerland

[30] Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Shandong, Peoples R China

[31] Univ Paris Cite, APC, CEA,IRFU, Observ Paris,CNRS,IN2P3, F-11975205 Paris, France

[32] Tsinghua Univ, Dept Engn Phys, Beijing 100084, Peoples R China

[33] Zhengzhou Univ, Sch Phys & Microelect, Zhengzhou 450001, Henan, Peoples R China

[34] Chinese Acad Sci, Yunnan Observ, Kunming 650216, Yunnan, Peoples R China

[35] Sichuan Univ, Coll Phys, Chengdu 610065, Sichuan, Peoples R China

[36] Russian Acad Sci, Inst Nucl Res, Moscow 117312, Russia

[37] Moscow Inst Phys & Technol, Moscow 141700, Russia

[38] Peking Univ, Sch Phys, Beijing 100871, Peoples R China

[39] Guangxi Univ, Sch Phys Sci & Technol, Nanning 530004, Peoples R China

[40] Mahidol Univ, Dept Phys, Fac Sci, Bangkok 10400, Thailand

[41] Nanchang Univ, Sch Phys & Mat Sci, Ctr Relativist Astrophys & High Energy Phys, Nanchang 330031, Jiangxi, Peoples R China

[42] Nanchang Univ, Inst Space Sci & Technol, Nanchang 330031, Jiangxi, Peoples R China

[43] Chinese Acad Sci, Natl Space Sci Ctr, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 133卷 / 06期

基金：

中国国家自然科学基金; 国家重点研发计划;

关键词：

GAMMA; SEARCH; ANNIHILATION; DECAY; CANDIDATES; CLUSTER;

D O I：

10.1103/PhysRevLett.133.061001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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 gamma 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 gamma-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.

引用

页数：8

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