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Article ; Online: Diurnal Effect of Sub-GeV Dark Matter Boosted by Cosmic Rays.

Ge, Shao-Feng / Liu, Jianglai / Yuan, Qiang / Zhou, Ning

2021 Volume 126, Issue 9, Page(s) 91804

Abstract: We point out a new type of diurnal effect for the cosmic ray boosted dark matter (DM). The DM-nucleon interactions not only allow the direct detection of DM with nuclear recoils but also allow cosmic rays to scatter with and boost the nonrelativistic DM ... ...

Abstract	We point out a new type of diurnal effect for the cosmic ray boosted dark matter (DM). The DM-nucleon interactions not only allow the direct detection of DM with nuclear recoils but also allow cosmic rays to scatter with and boost the nonrelativistic DM to higher energies. If the DM-nuclei scattering cross sections are sufficiently large, the DM flux is attenuated as it propagates through the Earth, leading to a strong diurnal modulation. This diurnal modulation provides another prominent signature for the direct detection of boosted sub-GeV DM, in addition to signals with higher recoil energy.
Language	English
Publishing date	2021-03-22
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.126.091804
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Design, construction and commissioning of the PandaX-30T liquid xenon management system

Wang, Xiuli / Lei, Zhuoqun / Ju, Yonglin / Liu, Jianglai / Zhou, Ning / Chen, Yu / Wang, Zhou / Cui, Xiangyi / Meng, Yue / Zhao, Li

2023

Abstract: The PandaX-30T is a proposed next-generation experiment to study dark matter and neutrinos using a dual-phase time projection chamber with \textasciitilde30 tons of liquid xenon. An innovative xenon handling subsystem of the PandaX-30T, the First-X, is ... ...

Abstract	The PandaX-30T is a proposed next-generation experiment to study dark matter and neutrinos using a dual-phase time projection chamber with \textasciitilde30 tons of liquid xenon. An innovative xenon handling subsystem of the PandaX-30T, the First-X, is described in this paper. The First-X is developed to handle liquid xenon safely and efficiently, including liquefying and long-term storing xenon without losses or contamination, and transferring cryogenic liquid xenon between the storage module and the detector safely and effectively without venting out. The storage module of the First-X is five specially designed double-walled cylindrical vessels (Center Tanks) equipped with three heat exchangers each for pressure and temperature regulation. Each Center Tank is designed with a vacuum and multi-layer insulation and a maximum allowable working pressure of 7.1 MPa, allowing 6 tons of xenon to be stored at 165--178 K at 0.1--0.2 MPa in the liquid phase or up to 300 K and up to 6.95 MPa in the supercritical phase. High-pressure storage (\textgreater0.2 MPa) only occurs in case of long-term detector shutdown or lack of nitrogen, ensuring no-loss storage of 6 tons of xenon in the range 178--300 K. In this paper, the thermophysical performances of the First-X and innovative scenarios to conduct non-vented cryogen transportation were experimentally conducted and reported using liquid argon. The non-vented cryogenic liquid filling and pump-assisted cryogenic liquid recovery have been conducted with liquid argon at a mass flow rate of 1390 kg/h, corresponding to a xenon mass flow rate of 2140 kg/h. Compared with the PandaX-4T, the transportation of xenon between the detector and the storage module is conducted in the liquid phase rather than in the gaseous phase, and the filling rate and the recovery rate are increased by approximately 50 times and 30 times, respectively. Comment: 25 pages, 17 figures
Keywords	Physics - Instrumentation and Detectors
Subject code	660
Publishing date	2023-01-15
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Book ; Online: Radon Removal Commissioning of the PandaX-4T Cryogenic Distillation System

Cui, Xiangyi / Wang, Zhou / Li, Jiafu / Li, Shuaijie / Si, Lin / Ju, Yonglin / Ma, Wenbo / Liu, Jianglai / Zhao, Li / Ji, Xiangdong / Yan, Rui / Sha, Haidong / Huang, Peiyao / Wang, Xiuli / Liu, Huaxuan

2024

Abstract: The PandaX-4T distillation system, designed for the removal of krypton and radon from xenon, was evaluated for its radon removal efficiency using a $^{222}$Rn source during the online distillation process. The PandaX-4T dark matter detector was employed ... ...

Abstract	The PandaX-4T distillation system, designed for the removal of krypton and radon from xenon, was evaluated for its radon removal efficiency using a $^{222}$Rn source during the online distillation process. The PandaX-4T dark matter detector was employed to monitor the temporal evolution of radon activity. To determine the radon reduction factor, the experimental data of radon atoms introduced into and bypassed the distillation system was compared. The results indicate that, the PandaX-4T distillation system achieved a radon reduction factor exceeding 190 at a flow rate of 10 slpm and a reflux ratio of 1.44. Gas-only online distillation process of a flow rate of 20 slpm was also conducted, without observing significant reduction of radon levels in the detector. This observation suggests that the migration flow of radon atoms from the liquid phase to the gas phase is limited, and the flow rate and duration of the process may be insignificant compared to the total xenon mass of 6 tons. This study provides the evidence supporting the efficient removal of radon using cryogenic distillation systems. Furthermore, it demonstrates that the distillation method could control radon background levels effectively in liquid xenon-based experiments. Comment: 13 pages, 9 figures
Keywords	Physics - Instrumentation and Detectors
Subject code	660
Publishing date	2024-01-03
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Performance of cryogenic demountable indium seal at high pressures.

Wang, Xiuli / Li, Shu / Ju, Yonglin / Lei, Zhuoqun / Liu, Jianglai / Ji, Xiangdong / Tang, Xuefeng / Gou, Yonghua

The Review of scientific instruments

2021 Volume 92, Issue 9, Page(s) 93905

Abstract: An essential challenge in seal design is to provide an ultra-low leak rate at cryogenic temperatures and high pressures. In this paper, the performance of demountable indium seals under a charging pressure of 8.5 MPa A and at cryogenic temperatures down ... ...

Abstract	An essential challenge in seal design is to provide an ultra-low leak rate at cryogenic temperatures and high pressures. In this paper, the performance of demountable indium seals under a charging pressure of 8.5 MPa A and at cryogenic temperatures down to -190 °C was investigated. Three indium seal structures with a diameter of 30 mm were specifically designed and tested. All three structures went through both room temperature and cryogenic temperature tests in cycles with a pressure of up to 8.5 MPa A. In addition, leak rate experiments regarding the creep relaxation effect of the indium ring were conducted. The results showed that the leak rates of all three structures were lower than 1 × 10
Language	English
Publishing date	2021-10-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/5.0051279
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Article ; Online: PandaX-4T cryogenic distillation system for removing krypton from xenon.

Yan, Rui / Wang, Zhou / Cui, Xiangyi / Ju, Yonglin / Sha, Haidong / Li, Shuaijie / Huang, Peiyao / Wang, Xiuli / Ma, Wenbo / Fan, Yingjie / Zhao, Li / Liu, Jianglai / Ji, Xiangdong / Zhou, Jifang / Shang, Changsong / Liu, Liqiang

The Review of scientific instruments

2021 Volume 92, Issue 12, Page(s) 123303

Abstract: An efficient cryogenic distillation system was designed and constructed for the PandaX-4T dark matter detector based on the McCabe-Thiele method and the conservation of mass and energy. This distillation system is designed to reduce the concentration of ... ...

Abstract	An efficient cryogenic distillation system was designed and constructed for the PandaX-4T dark matter detector based on the McCabe-Thiele method and the conservation of mass and energy. This distillation system is designed to reduce the concentration of krypton in commercial xenon from 5 × 10
Language	English
Publishing date	2021-12-31
Publishing country	United States
Document type	Journal Article
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/5.0065154
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Design and Experiment of the PandaX-4T High Speed Ultra-high Purity Xenon Recuperation System

Wang, Zhou / Ma, Wenbo / Zhang, Tao / Zhao, Li / Li, Shuaijie / Cui, Xiangyi / Liu, Jianglai / Fu, Changbo / Ju, Yonglin / Lin, Qing / Chen, Xiaohua / Chen, Xun / Wang, Xiuli

2022

Abstract: In order to recuperate the ultra-high purity xenon from PandaX-4T dark matter detector to high-pressure gas cylinders in emergency or at the end-of-run situation, a high speed ultra-high purity xenon recuperation system is designed and developed. This ... ...

Abstract	In order to recuperate the ultra-high purity xenon from PandaX-4T dark matter detector to high-pressure gas cylinders in emergency or at the end-of-run situation, a high speed ultra-high purity xenon recuperation system is designed and developed. This system includes a diaphragm pump, the heat management system, the main recuperation pipeline, the reflux pipeline, the auxiliary recuperation pipeline and the automatic control system. The liquid xenon in the detector is vaporized by the heat management system, and the gaseous xenon is compressed to 6 MPa at the flow rate of 200 standard litres per minute (SLPM) using the diaphragm compressor. The high-pressure xenon is filled into 128 gas cylinders via the main recuperation pipeline. During the recuperation, the low pressure and temperature conditions of 2 ~ 3 atmospheres and 178 ~ 186.5 K in PandaX-4T dark matter detector are kept by the cooperation of the main recuperation pipeline, reflux pipeline and the auxiliary recuperation pipeline to guarantee the safety, and the purity of the recuperated xenon gas is measured to ensure no contamination happened. The development of the high speed ultra-high purity xenon recuperation system is important for the operation of large-scale dark matter detectors with the requirements of strict temperature and pressure environment and low background.
Keywords	Physics - Instrumentation and Detectors ; High Energy Physics - Experiment
Subject code	660
Publishing date	2022-07-25
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Searching for Two-Neutrino and Neutrinoless Double Beta Decay of ^{134}Xe with the PandaX-4T Experiment.

Yan, Xiyu / Cheng, Zhaokan / Abdukerim, Abdusalam / Bo, Zihao / Chen, Wei / Chen, Xun / Cheng, Chen / Cui, Xiangyi / Fan, Yingjie / Fang, Deqing / Fu, Changbo / Fu, Mengting / Geng, Lisheng / Giboni, Karl / Gu, Linhui / Guo, Xuyuan / Han, Chencheng / Han, Ke / He, Changda /

He, Jinrong / Huang, Di / Huang, Yanlin / Huang, Junting / Huang, Zhou / Hou, Ruquan / Hou, Yu / Ji, Xiangdong / Ju, Yonglin / Li, Chenxiang / Li, Jiafu / Li, Mingchuan / Li, Shuaijie / Li, Tao / Lin, Qing / Liu, Jianglai / Lu, Xiaoying / Lu, Congcong / Luo, Lingyin / Luo, Yunyang / Ma, Wenbo / Ma, Yugang / Mao, Yajun / Meng, Yue / Ning, Xuyang / Pang, Binyu / Qi, Ningchun / Qian, Zhicheng / Ren, Xiangxiang / Shaheed, Nasir / Shang, Xiaofeng / Shao, Xiyuan / Shen, Guofang / Si, Lin / Sun, Wenliang / Tan, Andi / Tao, Yi / Wang, Anqing / Wang, Meng / Wang, Qiuhong / Wang, Shaobo / Wang, Siguang / Wang, Wei / Wang, Xiuli / Wang, Zhou / Wei, Yuehuan / Wu, Mengmeng / Wu, Weihao / Xia, Jingkai / Xiao, Mengjiao / Xiao, Xiang / Xie, Pengwei / Yan, Binbin / Yang, Jijun / Yang, Yong / Yao, Yukun / Yu, Chunxu / Yuan, Ying / Yuan, Zhe / Zeng, Xinning / Zhang, Dan / Zhang, Minzhen / Zhang, Peng / Zhang, Shibo / Zhang, Shu / Zhang, Tao / Zhang, Wei / Zhang, Yang / Zhang, Yingxin / Zhang, Yuanyuan / Zhao, Li / Zheng, Qibin / Zhou, Jifang / Zhou, Ning / Zhou, Xiaopeng / Zhou, Yong / Zhou, Yubo

Physical review letters

2024 Volume 132, Issue 15, Page(s) 152502

Abstract: 134}Xe is a candidate isotope for neutrinoless double beta decay (0νββ) search. In addition, the two-neutrino case (2νββ) allowed by the standard model of particle physics has not yet been observed. With the 656-kg natural xenon in the fiducial volume ... ...

Abstract	^{134}Xe is a candidate isotope for neutrinoless double beta decay (0νββ) search. In addition, the two-neutrino case (2νββ) allowed by the standard model of particle physics has not yet been observed. With the 656-kg natural xenon in the fiducial volume of the PandaX-4T detector, which contains 10.4% of ^{134}Xe, and its initial 94.9-day exposure, we have established the most stringent constraints on 2νββ and 0νββ of ^{134}Xe half-lives, with limits of 2.8×10^{22} yr and 3.0×10^{23} yr at 90% confidence level, respectively. The 2νββ (0νββ) limit surpasses the previously reported best result by a factor of 32 (2.7), highlighting the potential of large monolithic natural xenon detectors for double beta decay searches.
Language	English
Publishing date	2024-04-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.132.152502
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Dark Matter Search Results from the PandaX-4T Commissioning Run.

Meng, Yue / Wang, Zhou / Tao, Yi / Abdukerim, Abdusalam / Bo, Zihao / Chen, Wei / Chen, Xun / Chen, Yunhua / Cheng, Chen / Cheng, Yunshan / Cui, Xiangyi / Fan, Yingjie / Fang, Deqing / Fu, Changbo / Fu, Mengting / Geng, Lisheng / Giboni, Karl / Gu, Linhui / Guo, Xuyuan /

Han, Ke / He, Changda / He, Jinrong / Huang, Di / Huang, Yanlin / Huang, Zhou / Hou, Ruquan / Ji, Xiangdong / Ju, Yonglin / Li, Chenxiang / Li, Mingchuan / Li, Shu / Li, Shuaijie / Lin, Qing / Liu, Jianglai / Lu, Xiaoying / Luo, Lingyin / Ma, Wenbo / Ma, Yugang / Mao, Yajun / Shaheed, Nasir / Ning, Xuyang / Qi, Ningchun / Qian, Zhicheng / Ren, Xiangxiang / Shang, Changsong / Shen, Guofang / Si, Lin / Sun, Wenliang / Tan, Andi / Wang, Anqing / Wang, Meng / Wang, Qiuhong / Wang, Shaobo / Wang, Siguang / Wang, Wei / Wang, Xiuli / Wu, Mengmeng / Wu, Weihao / Xia, Jingkai / Xiao, Mengjiao / Xiao, Xiang / Xie, Pengwei / Yan, Binbin / Yan, Xiyu / Yang, Jijun / Yang, Yong / Yu, Chunxu / Yuan, Jumin / Yuan, Ying / Zhang, Dan / Zhang, Minzhen / Zhang, Peng / Zhang, Tao / Zhao, Li / Zheng, Qibin / Zhou, Jifang / Zhou, Ning / Zhou, Xiaopeng / Zhou, Yong

Physical review letters

2022 Volume 127, Issue 26, Page(s) 261802

Abstract: We report the first dark matter search results using the commissioning data from PandaX-4T. Using a time projection chamber with 3.7 tonne of liquid xenon target and an exposure of 0.63 tonne·year, 1058 candidate events are identified within an ... ...

Abstract	We report the first dark matter search results using the commissioning data from PandaX-4T. Using a time projection chamber with 3.7 tonne of liquid xenon target and an exposure of 0.63 tonne·year, 1058 candidate events are identified within an approximate nuclear recoil energy window between 5 and 100 keV. No significant excess over background is observed. Our data set a stringent limit to the dark matter-nucleon spin-independent interactions, with a lowest excluded cross section (90% C.L.) of 3.8×10^{-47} cm^{2} at a dark matter mass of 40 GeV/c^{2}.
Language	English
Publishing date	2022-01-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.127.261802
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Search for Light Dark Matter with Ionization Signals in the PandaX-4T Experiment.

Li, Shuaijie / Wu, Mengmeng / Abdukerim, Abdusalam / Bo, Zihao / Chen, Wei / Chen, Xun / Chen, Yunhua / Cheng, Chen / Cheng, Zhaokan / Cui, Xiangyi / Fan, Yingjie / Fang, Deqing / Fu, Changbo / Fu, Mengting / Geng, Lisheng / Giboni, Karl / Gu, Linhui / Guo, Xuyuan / Han, Chencheng /

Han, Ke / He, Changda / He, Jinrong / Huang, Di / Huang, Yanlin / Huang, Zhou / Hou, Ruquan / Ji, Xiangdong / Ju, Yonglin / Li, Chenxiang / Li, Jiafu / Li, Mingchuan / Li, Shu / Lin, Qing / Liu, Jianglai / Lu, Xiaoying / Luo, Lingyin / Luo, Yunyang / Ma, Wenbo / Ma, Yugang / Mao, Yajun / Meng, Yue / Ning, Xuyang / Qi, Ningchun / Qian, Zhicheng / Ren, Xiangxiang / Shaheed, Nasir / Shang, Changsong / Shang, Xiaofeng / Shen, Guofang / Si, Lin / Sun, Wenliang / Tan, Andi / Tao, Yi / Wang, Anqing / Wang, Meng / Wang, Qiuhong / Wang, Shaobo / Wang, Siguang / Wang, Wei / Wang, Xiuli / Wang, Zhou / Wei, Yuehuan / Wu, Weihao / Xia, Jingkai / Xiao, Mengjiao / Xiao, Xiang / Xie, Pengwei / Yan, Binbin / Yan, Xiyu / Yang, Jijun / Yang, Yong / Yao, Yukun / You, Zhengyun / Yu, Chunxu / Yuan, Jumin / Yuan, Ying / Yuan, Zhe / Zeng, Xinning / Zhang, Dan / Zhang, Minzhen / Zhang, Peng / Zhang, Shibo / Zhang, Shu / Zhang, Tao / Zhang, Yang / Zhang, Yingxin / Zhang, Yuanyuan / Zhao, Li / Zheng, Qibin / Zhou, Jifang / Zhou, Ning / Zhou, Xiaopeng / Zhou, Yong / Zhou, Yubo

Physical review letters

2023 Volume 130, Issue 26, Page(s) 261001

Abstract: 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 ...

Abstract	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·year, we set the most stringent limits within a mass range from 40 MeV/c^{2} to 10 GeV/c^{2} for pointlike dark matter-electron interaction, 100 MeV/c^{2} to 10 GeV/c^{2} for dark matter-electron interaction via a light mediator, and 3.2 to 4 GeV/c^{2} 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.
MeSH term(s)	Cell Nucleus ; Electrons
Language	English
Publishing date	2023-01-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.130.261001
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Search for Cosmic-Ray Boosted Sub-GeV Dark Matter at the PandaX-II Experiment.

Cui, Xiangyi / Abdukerim, Abdusalam / Bo, Zihao / Chen, Wei / Chen, Xun / Chen, Yunhua / Cheng, Chen / Cheng, Yunshan / Fan, Yingjie / Fang, Deqing / Fu, Changbo / Fu, Mengting / Geng, Lisheng / Giboni, Karl / Gu, Linhui / Guo, Xuyuan / Han, Ke / He, Changda / He, Jinrong /

Huang, Di / Huang, Yanlin / Huang, Zhou / Hou, Ruquan / Ji, Xiangdong / Ju, Yonglin / Li, Chenxiang / Li, Mingchuan / Li, Shu / Li, Shuaijie / Lin, Qing / Liu, Jianglai / Lu, Xiaoying / Luo, Lingyin / Ma, Wenbo / Ma, Yugang / Mao, Yajun / Meng, Yue / Shaheed, Nasir / Ning, Xuyang / Qi, Ningchun / Qian, Zhicheng / Ren, Xiangxiang / Shang, Changsong / Shen, Guofang / Si, Lin / Sun, Wenliang / Tan, Andi / Tao, Yi / Wang, Anqing / Wang, Meng / Wang, Qiuhong / Wang, Shaobo / Wang, Siguang / Wang, Zhou / Wang, Wei / Wang, Xiuli / Wu, Mengmeng / Wu, Weihao / Xia, Jingkai / Xiao, Mengjiao / Xiao, Xiang / Xie, Pengwei / Yan, Binbin / Yan, Xiyu / Yang, Jijun / Yang, Yong / Yu, Chunxu / Yuan, Jumin / Yuan, Ying / Zhang, Dan / Zhang, Minzhen / Zhang, Peng / Zhang, Tao / Zhao, Li / Zheng, Qibin / Zhou, Jifang / Zhou, Ning / Zhou, Xiaopeng / Zhou, Yong / Ge, Shao-Feng / Yuan, Qiang

Physical review letters

2022 Volume 128, Issue 17, Page(s) 171801

Abstract: We report a novel search for the cosmic-ray boosted dark matter using the 100 tonne·day full dataset of the PandaX-II detector located at the China Jinping Underground Laboratory. With the extra energy gained from the cosmic rays, sub-GeV dark matter ... ...

Abstract	We report a novel search for the cosmic-ray boosted dark matter using the 100 tonne·day full dataset of the PandaX-II detector located at the China Jinping Underground Laboratory. With the extra energy gained from the cosmic rays, sub-GeV dark matter particles can produce visible recoil signals in the detector. The diurnal modulations in rate and energy spectrum are utilized to further enhance the signal sensitivity. Our result excludes the dark matter-nucleon elastic scattering cross section between 10^{-31} and 10^{-28} cm^{2} for dark matter masses from 0.1 MeV/c^{2} to 0.1 GeV/c^{2}, with a large parameter space previously unexplored by experimental collaborations.
Language	English
Publishing date	2022-05-16
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.128.171801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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