Constraints on sub-GeV dark matter boosted by cosmic rays from the CDEX-10 experiment at the China Jinping Underground Laboratory

被引：34

作者：

Xu, R. ^{[1
,2
]}

Yang, L. T. ^{[1
,2
]}

Yue, Q. ^{[1
,2
]}

Kang, K. J. ^{[1
,2
]}

Li, Y. J. ^{[1
,2
]}

Agartioglu, M. ^{[3
]}

An, H. P. ^{[1
,2
,4
]}

Chang, J. P. ^{[5
]}

Chen, Y. H. ^{[6
]}

Cheng, P. ^{[1
,2
,7
]}

Dai, W. H. ^{[1
,2
]}

Deng, Z. ^{[1
,2
]}

Fang, C. H. ^{[8
]}

Geng, X. P. ^{[1
,2
]}

Gong, H. ^{[1
,2
]}

Guo, X. Y. ^{[6
]}

He, L. ^{[5
]}

He, S. M. ^{[6
]}

Hu, J. W. ^{[1
,2
]}

Huang, H. X. ^{[10
]}

Huang, T. C. ^{[11
]}

Jia, H. T. ^{[8
]}

Jiang, X. ^{[8
]}

Li, H. B. ^{[3
]}

Li, J. M. ^{[1
,2
]}

Li, J. ^{[1
,2
]}

Li, Q. Y. ^{[8
]}

Li, R. M. J. ^{[8
]}

Li, X. Q. ^{[12
]}

Li, Y. L. ^{[1
,2
]}

Liang, Y. F. ^{[1
,2
]}

Liao, B. ^{[7
]}

Lin, F. K. ^{[3
]}

Lin, S. T. ^{[8
]}

Liu, S. K. ^{[8
]}

Liu, Y. ^{[8
]}

Liu, Y. D. ^{[7
]}

Liu, Y. Y. ^{[7
]}

Liu, Z. Z. ^{[1
,2
]}

Ma, H. ^{[1
,2
]}

Mao, Y. C. ^{[9
]}

Nie, Q. Y. ^{[1
,2
]}

Ning, J. H. ^{[6
]}

Pan, H. ^{[5
]}

Qi, N. C. ^{[6
]}

Ren, J. ^{[10
]}

Ruan, X. C. ^{[10
]}

Saraswat, K. ^{[3
]}

Sharma, V ^{[3
,13
]}

She, Z. ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Key Lab Particle & Radiat Imaging, Minist Educ, Beijing 100084, Peoples R China

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

[3] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

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

[5] NUCTECH Co, Beijing 100084, Peoples R China

[6] YaLong River Hydropower Dev Co, Chengdu 610051, Peoples R China

[7] Beijing Normal Univ, Coll Nucl Sci & Technol, Beijing 100875, Peoples R China

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

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

[10] China Inst Atom Energy, Dept Nucl Phys, Beijing 102413, Peoples R China

[11] Sun Yat Sen Univ, Sino French Inst Nucl & Technol, Zhuhai 519082, Peoples R China

[12] Nankai Univ, Sch Phys, Tianjin 300071, Peoples R China

[13] Banaras Hindu Univ, Dept Phys, Varanasi 221005, Uttar Pradesh, India

[14] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China

来源：

PHYSICAL REVIEW D | 2022年 / 106卷 / 05期

基金：

中国国家自然科学基金;

关键词：

LOCAL INTERSTELLAR SPECTRA;

D O I：

10.1103/PhysRevD.106.052008

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new constraints on light dark matter boosted by cosmic rays (CRDM) using the 205.4 kg day data of the CDEX-10 experiment conducted at the China Jinping Underground Laboratory. The Monte Carlo simulation package CJPL ESS was employed to evaluate the Earth shielding effect. Several key factors have been introduced and discussed in our CRDM analysis, including the contributions from heavier CR nuclei than proton and helium, the inhomogeneity of CR distribution, and the impact of the form factor in the Earth attenuation calculation. Our result excludes the dark matter-nucleon elastic scattering cross section region from 1.7 x 10(-30) to 10(-26) cm(2) for dark matter of 10 keV/c(2) to 1 GeV/c(2).

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