Search for Light Dark Matter with Ionization Signals in the PandaX-4T Experiment

被引：20

作者：

Li, Shuaijie ^{[2
]}

Wu, Mengmeng ^{[3
]}

Abdukerim, Abdusalam ^{[1
]}

Bo, Zihao ^{[1
]}

Chen, Wei ^{[1
]}

Chen, Xun ^{[1
,4
]}

Chen, Yunhua ^{[5
]}

Cheng, Chen ^{[3
]}

Cheng, Zhaokan ^{[6
]}

Cui, Xiangyi ^{[2
]}

Fan, Yingjie ^{[7
]}

Fang, Deqing ^{[8
]}

Fu, Changbo ^{[8
]}

Fu, Mengting ^{[9
]}

Geng, Lisheng ^{[10
,11
,12
]}

Giboni, Karl ^{[1
]}

Gu, Linhui ^{[1
]}

Guo, Xuyuan ^{[5
]}

Han, Chencheng ^{[1
]}

Han, Ke ^{[1
]}

He, Changda ^{[1
]}

He, Jinrong ^{[5
]}

Huang, Di ^{[1
]}

Huang, Yanlin ^{[13
]}

Huang, Zhou ^{[1
]}

Hou, Ruquan ^{[4
]}

Ji, Xiangdong ^{[14
]}

Ju, Yonglin ^{[15
]}

Li, Chenxiang ^{[1
]}

Li, Jiafu ^{[3
]}

Li, Mingchuan ^{[5
]}

Li, Shu ^{[15
]}

Lin, Qing ^{[16
,17
]}

Liu, Jianglai ^{[1
,2
,4
]}

Lu, Xiaoying ^{[2
,18
,19
]}

Luo, Lingyin ^{[9
]}

Luo, Yunyang ^{[17
]}

Ma, Wenbo ^{[1
]}

Ma, Yugang ^{[8
]}

Mao, Yajun ^{[9
]}

Meng, Yue ^{[1
,4
]}

Ning, Xuyang ^{[1
]}

Qi, Ningchun ^{[5
]}

Qian, Zhicheng ^{[1
]}

Ren, Xiangxiang ^{[18
,19
]}

Shaheed, Nasir ^{[18
,19
]}

Shang, Changsong ^{[5
]}

Shang, Xiaofeng ^{[1
]}

Shen, Guofang ^{[10
]}

Si, Lin ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Phys & Astron, Key Lab Particle Astrophys & Cosmol MoE, Shanghai Key Lab Particle Phys & Cosmol, Shanghai 200240, Peoples R China

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

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

[4] Shanghai Jiao Tong Univ Sichuan Res Inst, Sichuan Res Inst, Chengdu 610213, Peoples R China

[5] Yalong River Hydropower Dev Co Ltd, 288 Shuanglin Rd, Chengdu 610051, Peoples R China

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

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

[8] Fudan Univ, Inst Modern Phys, Key Lab Nucl Phys & Ion beam Applicat MOE, Shanghai 200433, Peoples R China

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

[10] Beihang Univ, Sch Phys, Beijing 102206, Peoples R China

[11] Beihang Univ, Int Res Ctr Nuclei & Particles Cosmos, Beijing Key Lab Adv Nucl Mat & Phys, Beijing 100191, Peoples R China

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

[13] Univ Shanghai Sci & Technol, Sch Med Instrument & Food Engn, Shanghai 200093, Peoples R China

[14] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[15] Shanghai Jiao Tong Univ, Sch Mech Engn, Shanghai 200240, Peoples R China

[16] Univ Sci & Technol China, State Key Lab Particle Detect & Elect, Hefei 230026, Peoples R China

[17] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China

[18] Shandong Univ, Inst Frontier & Interdisciplinary Sci, Res Ctr Particle Sci & Technol, Qingdao 266237, Shandong, Peoples R China

[19] Shandong Univ, Key Lab Particle Phys Particle Irradiat, Minist Educ, Qingdao 266237, Shandong, Peoples R China

[20] Shanghai Jiao Tong Univ, SJTU Paris Elite Inst Technol, Shanghai 200240, Peoples R China

[21] Sun Yat Sen Univ, Sch Phys & Astron, Zhuhai 519082, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2023年 / 130卷 / 26期

基金：

中国国家自然科学基金;

关键词：

We would like to thank Matthew Szydagis for useful discussions concerning the NEST model uncertainty. This project is supported in part by grants from National Natural Science Foundation of China (No. 12090061; No; 12005131; 11905128; 11925502; 12222505; 11835005); a grant from the Ministry of Science and Technology of China (No. 2016YFA0400301); and by the Office of Science and Technology; Shanghai Municipal Government (grant No. 18JC1410200). We thank supports from Double First Class Plan of the Shanghai Jiao Tong University. We also thank the sponsorship from the Hongwen Foundation in Hong Kong; Tencent Foundation in China; and Yangyang Development Fund. Finally; we thank the CJPL administration and the Yalong River Hydropower Development Company Ltd. for indispensable logistical support and other help;

D O I：

10.1103/PhysRevLett.130.261001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report the search results of light dark matter through its interactions with shell electrons and nuclei, using the commissioning data from the PandaX-4T liquid xenon detector. Low energy events are selected to have an ionization-only signal between 60 to 200 photoelectrons, corresponding to a mean nuclear recoil energy from 0.77 to 2.54 keV and electronic recoil energy from 0.07 to 0.23 keV. With an effective exposure of 0.55 tonne center dot year, we set the most stringent limits within a mass range from 40 MeV/c2 to 10 GeV/c2 for pointlike dark matter-electron interaction, 100 MeV/c2 to 10 GeV/c2 for dark matter-electron interaction via a light mediator, and 3.2 to 4 GeV/c2 for dark matter-nucleon spin-independent interaction. For DM interaction with electrons, our limits are closing in on the parameter space predicted by the freeze-in and freeze-out mechanisms in the early Universe.

引用

页数：7

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