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Dark Matter Search with sub-keV Germanium Detectors at the China Jinping Underground Laboratory

Germanium detectors with sub-keV sensitivities open a window to search for low-mass WIMP dark matter. The CDEX-TEXONO Collaboration is conducting the first research program at the new China Jinping Underground Laboratory with this approach.…

Instrumentation and Detectors · Physics 2019-08-14 Qian Yue , Henry T. Wong

Identification of Radiopure Titanium for the LZ Dark Matter Experiment and Future Rare Event Searches

The LUX-ZEPLIN (LZ) experiment will search for dark matter particle interactions with a detector containing a total of 10 tonnes of liquid xenon within a double-vessel cryostat. The large mass and proximity of the cryostat to the active…

Instrumentation and Detectors · Physics 2017-09-28 D. S. Akerib , C. W. Akerlof , D. Yu. Akimov , S. K. Alsum , H. M. Araújo , I. J. Arnquist , M. Arthurs , X. Bai , A. J. Bailey , J. Balajthy , S. Balashov , M. J. Barry , J. Belle , P. Beltrame , T. Benson , E. P. Bernard , A. Bernstein , T. P. Biesiadzinski , K. E. Boast , A. Bolozdynya , B. Boxer , R. Bramante , P. Brás , J. H. Buckley , V. V. Bugaev , R. Bunker , S. Burdin , J. K. Busenitz , C. Carels , D. L. Carlsmith , B. Carlson , M. C. Carmona-Benitez , C. Chan , J. J. Cherwinka , A. A. Chiller , C. Chiller , A. Cottle , R. Coughlen , W. W. Craddock , A. Currie , C. E. Dahl , T. J. R. Davison , A. Dobi , J. E. Y. Dobson , E. Druszkiewicz , T. K. Edberg , W. R. Edwards , W. T. Emmet , C. H. Faham , S. Fiorucci , T. Fruth , R. J. Gaitskell , N. J. Gantos , V. M. Gehman , R. M. Gerhard , C. Ghag , M. G. D. Gilchriese , B. Gomber , C. R. Hall , S. Hans , K. Hanzel , S. J. Haselschwardt , S. A. Hertel , S. Hillbrand , C. Hjemfelt , M. D. Hoff , B. Holbrook , E. Holtom , E. W. Hoppe , J. Y-K. Hor , M. Horn , D. Q. Huang , T. W. Hurteau , C. M. Ignarra , R. G. Jacobsen , W. Ji , A. Kaboth , K. Kamdin , K. Kazkaz , D. Khaitan , A. Khazov , A. V. Khromov , A. M. Konovalov , E. V. Korolkova , M. Koyuncu , H. Kraus , H. J. Krebs , V. A. Kudryavtsev , A. V. Kumpan , S. Kyre , C. Lee , H. S. Lee , J. Lee , D. S. Leonard , R. Leonard , K. T. Lesko , C. Levy , F. -T. Liao , J. Lin , A. Lindote , R. E. Linehan , W. H. Lippincott , X. Liu , M. I. Lopes , B. Lopez Paredes , W. Lorenzon , S. Luitz , P. Majewski , A. Manalaysay , L. Manenti , R. L. Mannino , D. J. Markley , T. J. Martin , M. F. Marzioni , C. T. McConnell , D. N. McKinsey , D. -M. Mei , Y. Meng , E. H. Miller , E. Mizrachi , J. Mock , M. E. Monzani , J. A. Morad , B. J. Mount , A. St. J. Murphy , C. Nehrkorn , H. N. Nelson , F. Neves , J. A. Nikkel , J. O'Dell , K. O'Sullivan , I. Olcina , M. A. Olevitch , K. C. Oliver-Mallory , K. J. Palladino , E. K. Pease , A. Piepke , S. Powell , R. M. Preece , K. Pushkin , B. N. Ratcliff , J. Reichenbacher , L. Reichhart , C. A. Rhyne , A. Richards , J. P. Rodrigues , H. J. Rose , R. Rosero , P. Rossiter , J. S. Saba , M. Sarychev , R. W. Schnee , M. Schubnell , P. R. Scovell , S. Shaw , T. A. Shutt , C. Silva , K. Skarpaas , W. Skulski , M. Solmaz , V. N. Solovov , P. Sorensen , V. V. Sosnovtsev , I. Stancu , M. R. Stark , S. Stephenson , T. M. Stiegler , K. Stifter , T. J. Sumner , M. Szydagis , D. J. Taylor , W. C. Taylor , D. Temples , P. A. Terman , K. J. Thomas , J. A. Thomson , D. R. Tiedt , M. Timalsina , W. H. To , A. Tomás , T. E. Tope , M. Tripathi , L. Tvrznikova , J. Va'vra , A. Vacheret , M. G. D. van der Grinten , J. R. Verbus , C. O. Vuosalo , W. L. Waldron , R. Wang , R. Watson , R. C. Webb , W. -Z. Wei , M. While , D. T. White , T. J. Whitis , W. J. Wisniewski , M. S. Witherell , F. L. H. Wolfs , D. Woodward , S. Worm , J. Xu , M. Yeh , J. Yin , C. Zhang

Results from a Search for Light-Mass Dark Matter with a P-type Point Contact Germanium Detector

We report on several features present in the energy spectrum from an ultra low-noise germanium detector operated at 2,100 m.w.e. By implementing a new technique able to reject surface events, a number of cosmogenic peaks can be observed for…

Cosmology and Nongalactic Astrophysics · Physics 2011-04-05 C. E. Aalseth , P. S. Barbeau , N. S. Bowden , B. Cabrera-Palmer , J. Colaresi , J. I. Collar , S. Dazeley , P. de Lurgio , G. Drake , J. E. Fast , N. Fields , C. H. Greenberg , T. W. Hossbach , M. E. Keillor , J. D. Kephart , M. G. Marino , H. S. Miley , M. L. Miller , J. L. Orrell , D. C. Radford , D. Reyna , R. G. H. Robertson , R. L. Talaga , O. Tench , T. D. Van Wechel , J. F. Wilkerson , K. M. Yocum

A Search of Low-Mass WIMPs with p-type Point Contact Germanium Detector in the CDEX-1 Experiment

The CDEX-1 experiment conducted a search of low-mass (< 10 GeV/c2) Weakly Interacting Massive Particles (WIMPs) dark matter at the China Jinping Underground Laboratory using a p-type point-contact germanium detector with a fiducial mass of…

High Energy Physics - Experiment · Physics 2016-10-25 W. Zhao , Q. Yue , K. J. Kang , J. P. Cheng , Y. J. Li , H. T. Wong , S. T. Lin , J. P. Chang , J. H. Chen , Q. H. Chen , Y. H. Chen , Z. Deng , Q. Du , H. Gong , X. Q. Hao , H. J. He , Q. J. He , H. X. Huang , T. R. Huang , H. Jiang , H. B. Li , J. Li , J. Li , J. M. Li , X. Li , X. Y. Li , Y. L. Li , F. K. Lin , S. K. Liu , L. C. Lü , H. Ma , J. L. Ma , S. J. Mao , J. Q. Qin , J. Ren , J. Ren , X. C. Ruan , V. Sharma , M. B. Shen , L. Singh , M. K. Singh , A. K. Soma , J. Su , C. J. Tang , J. M. Wang , L. Wang , Q. Wang , S. Y. Wu , Y. C. Wu , Z. Z. Xianyu , R. Q. Xiao , H. Y. Xing , F. Z. Xu , Y. Xu , X. J. Xu , T. Xue , L. T. Yang , S. W. Yang , N. Yi , C. X. Yu , H. Yu , X. Z. Yu , M. Zeng , X. H. Zeng , Z. Zeng , L. Zhang , Y. H. Zhang , M. G. Zhao , Z. Y. Zhou , J. J. Zhu , W. B. Zhu , X. Z. Zhu , Z. H. Zhu

Search of Neutrino Magnetic Moments with a High-Purity Germanium Detector at the Kuo-Sheng Nuclear Power Station

A search of neutrino magnetic moments was carried out at the Kuo-Sheng Nuclear Power Station at a distance of 28 m from the 2.9 GW reactor core. With a high purity germanium detector of mass 1.06 kg surrounded by scintillating NaI(Tl) and…

High Energy Physics - Experiment · Physics 2008-11-26 H. T. Wong , TEXONO Collaboration

Virtual depth by active background suppression: Revisiting the cosmic muon induced background of GERDA Phase II

In-situ production of long-lived isotopes by cosmic muon interactions may generate a non-negligible background for deep underground rare event searches. Previous Monte Carlo studies for the GERDA experiment at LNGS identified the delayed…

High Energy Physics - Experiment · Physics 2018-09-05 C. Wiesinger , L. Pandola , S. Schönert

Cosmic-ray induced background intercomparison with actively shielded HPGe detectors at underground locations

The main background above 3\,MeV for in-beam nuclear astrophysics studies with $\gamma$-ray detectors is caused by cosmic-ray induced secondaries. The two commonly used suppression methods, active and passive shielding, against this kind of…

Instrumentation and Detectors · Physics 2015-03-25 T. Szücs , D. Bemmerer , T. P. Reinhardt , K. Schmidt , M. P. Takács , A. Wagner , L. Wagner , D. Weinberger , K. Zuber

Search for Neutrinoless Double-Beta Decay of $^{76}$Ge with a Natural Broad Energy Germanium Detector

A natural broad energy germanium (BEGe) detector is operated in the China Jinping Underground Laboratory (CJPL) for a feasibility study of building the next generation experiment of the neutrinoless double-beta (0{$\nu\beta\beta$}) decay of…

Nuclear Experiment · Physics 2022-08-19 CDEX collaboration , W. H. Dai , H. Ma , Q. Yue , Z. She , K. J. Kang , Y. J. Li , M. Agartioglu , H. P. An , J. P. Chang , Y. H. Chen , J. P. Cheng , Z. Deng , C. H. Fang , X. P. Geng , H. Gong , Q. J. Guo , X. Y. Guo , L. He , S. M. He , J. W. Hu , H. X. Huang , T. C. Huang , H. T. Jia , X. Jiang , H. B. Li , J. M. Li , J. Li , Q. Y. Li , R. M. J. Li , X. Q. Li , Y. L. Li , Y. F. Liang , B. Liao , F. K. Lin , S. T. Lin , S. K. Liu , Y. D. Liu , Y. Liu , Y. Y. Liu , Z. Z. Liu , Y. C. Mao , Q. Y. Nie , J. H. Ning , H. Pan , N. C. Qi , J. Ren , X. C. Ruan , K. Saraswat , V. Sharma , M. K. Singh , T. X. Sun , C. J. Tang , W. Y. Tang , Y. Tian , G. F. Wang , L. Wang , Q. Wang , Y. Wang , Y. X. Wang , H. T. Wong , S. Y. Wu , Y. C. Wu , H. Y. Xing , R. Xu , Y. Xu , T. Xue , Y. L. Yan , L. T. Yang , C. H. Yeh , N. Yi , C. X. Yu , H. J. Yu , J. F. Yue , M. Zeng , Z. Zeng , B. T. Zhang , F. S. Zhang , L. Zhang , Z. H. Zhang , Z. Y. Zhang , K. K. Zhao , M. G. Zhao , J. F. Zhou , Z. Y. Zhou , J. J. Zhu

CDEX dark matter experiment: Status and prospects

The China Dark Matter Experiment (CDEX) aims at direct searches of light Weakly Interacting Massive Particles (WIMPs) at the China Jinping Underground Laboratory (CJPL) with an overburden of about 2400m rock. Results from a prototype CDEX-1…

High Energy Physics - Experiment · Physics 2020-02-04 Hao Ma , Yang Chen , Qian Yue , Li Wang , Tao Xue , Zhi Zeng , Kejun Kang , Jianping Cheng , Yuanjing Li , Jianmin Li , Yulan Li for CDEX Collaboration

The CDEX-1 1 kg Point-Contact Germanium Detector for Low Mass Dark Matter Searches

The CDEX Collaboration has been established for direct detection of light dark matter particles, using ultra-low energy threshold p-type point-contact germanium detectors, in China JinPing underground Laboratory (CJPL). The first 1 kg…

Instrumentation and Detectors · Physics 2015-06-15 Ke-Jun Kang , Qian Yue , Yu-Cheng Wu , Jian-Ping Cheng , Yuan-Jing Li , Yang Bai , Yong Bi , Jian-Ping Chang , Nan Chen , Ning Chen , Qing-Hao Chen , Yun-Hua Chen , You-Chun Chuang , Zhi Dend , Qiang Du , Hui Gong , Xi-Qing Hao , Qing-Ju He , Xin-Hui Hu , Han-Xiong Huang , Teng-Rui Huang , Hao Jiang , Hau-Bin Li , Jian-Min Li , Jin Li , Jun Li , Xia Li , Xin-Ying Li , Xue-Qian Li , Yu-Lan Li , Heng-Ye Liao , Fong-Kay Lin , Shin-Ted Lin , Shu-Kui Liu , Lan-Chun Lv , Hao Ma , Shao-Ji Mao , Jian-Qiang Qin , Jie Ren , Jing Ren , Xi-Chao Ruan , Man-Bin Shen , Lakhwinder Singh , Manoj Kumar Singh , Arun Kumar Soma , Jian Su , Chang-Jian Tang , Chao-Hsiung Tseng , Ji-Min Wang , Li Wang , Qing Wang , Tsz-King Henry Wong , Shi-Yong Wu , Wei Wu , Yu-Cheng Wu , Hao-Yang Xing , Yin Xu , Tao Xue , Li-Tao Yang , Song-Wei Yang , Nan Yi , Chun-Xu Yu , Hao Yu , Xun-Zhen Yu , Xiong-Hui Zeng , Zhi Zeng , Lan Zhang , Yun-Hua Zhang , Ming-Gang Zhao , Wei Zhao , Su-Ning Zhong , Zu-Ying Zhou , Jing-Jun Zhu , Wei-Bin Zhu , Xue-Zhou Zhu , Zhong-Hua Zhu

Ultra-Low background germanium spectrometers at the China Jinping Underground Laboratory

Four ultra-low background germanium spectrometers, called GeTHU, have been installed at the first phase of China Jinping Underground Laboratory (CJPL-I), and served for material screening of dark matter and neutrino experiments. Recently, a…

Instrumentation and Detectors · Physics 2025-11-24 Jikai Chen , Zhi Zeng , Hao Ma , Jianping Cheng

Recent cosmogenic neutrino search results with IceCube and prospects with IceCube-Gen2

Neutrinos with energies beyond PeV (extremely high energy, EHE) are produced in interaction of the highest energy cosmic rays. One contribution to the EHE neutrino flux is expected to arise from so-called cosmogenic neutrinos generated in…

High Energy Astrophysical Phenomena · Physics 2024-09-04 Maximilian Meier

Cosmogenic production of $^{39}$Ar and $^{37}$Ar in argon

We have experimentally determined the production rate of $^{39}$Ar and $^{37}$Ar from cosmic ray neutron interactions in argon at sea level. Understanding these production rates is important for argon-based dark matter experiments that plan…

Nuclear Experiment · Physics 2019-08-28 R. Saldanha , H. O. Back , R. H. M. Tsang , T. Alexander , S. R. Elliott , S. Ferrara , E. Mace , C. Overman , M. Zalavadia

Demonstration of Surface Electron Rejection with Interleaved Germanium Detectors for Dark Matter Searches

The SuperCDMS experiment in the Soudan Underground Laboratory searches for dark matter with a 9-kg array of cryogenic germanium detectors. Symmetric sensors on opposite sides measure both charge and phonons from each particle interaction,…

Instrumentation and Detectors · Physics 2016-12-14 R. Agnese , A. J. Anderson , D. Balakishiyeva , R. Basu Thakur , D. A. Bauer , A. Borgland , D. Brandt , P. L. Brink , R. Bunker , B. Cabrera , D. O. Caldwell , D. G. Cerdeno , H. Chagani , M. Cherry , J. Cooley , B. Cornell , C. H. Crewdson , P. Cushman , M. Daal , P. C. F. Di Stefano , E. Do Couto E Silva , T. Doughty , L. Esteban , S. Fallows , E. Figueroa-Feliciano , J. Fox , M. Fritts , G. L. Godfrey , S. R. Golwala , J. Hall , H. R. Harris , J. Hasi , S. A. Hertel , B. A. Hines , T. Hofer , D. Holmgren , L. Hsu , M. E. Huber , A. Jastram , O. Kamaev , B. Kara , M. H. Kelsey , S. A. Kenany , A. Kennedy , C. J. Kenney , M. Kiveni , K. Koch , B. Loer , E. Lopez Asamar , R. Mahapatra , V. Mandic , C. Martinez , K. A. McCarthy , N. Mirabolfathi , R. A. Moffatt , D. C. Moore , P. Nadeau , R. H. Nelson , L. Novak , K. Page , R. Partridge , M. Pepin , A. Phipps , K. Prasad , M. Pyle , H. Qiu , R. Radpour , W. Rau , P. Redl , A. Reisetter , R. W. Resch , Y. Ricci , T. Saab , B. Sadoulet , J. Sander , R. Schmitt , K. Schneck , R. W. Schnee , S. Scorza , D. Seitz , B. Serfass , B. Shank , D. Speller , A. Tomada , A. N. Villano , B. Welliver , D. H. Wright , S. Yellin , J. J. Yen , B. A. Young , J. Zhang

Cosmogenesis Backgrounds, Experiment Depth and the Solar Neutrino TPC

A Time Projection Chamber (TPC) is one of the promising candidates to perform unique measurements in solar neutrino physics. Its features will enable it to work at depths of the order of 2000 mwe. This paper describes an estimation of the…

High Energy Physics - Experiment · Physics 2009-11-07 G. Bonvicini , A. Schreiner

Study of the material photon and electron background and the liquid argon detector veto efficiency of the CDEX-10 experiment

The China Dark Matter Experiment (CDEX) is located at the China Jinping underground laboratory (CJPL) and aims to directly detect the WIMP flux with high sensitivity in the low mass region. Here we present a study of the predicted photon…

Instrumentation and Detectors · Physics 2015-06-18 Jian Su , Zhi Zeng , Hao MA , Qian Yue , Jian-Ping Cheng , Jian-Ping Chang , Nan Chen , Ning Chen , Qing-Hao Chen , Yun-Hua Chen , Yo-Chun Chuang , Zhi Deng , Qiang Du , Hui Gong , Xi-Qing Hao , Qing-Ju He , Han-Xiong Huang , Teng-Rui Huang , Hao Jiang , Ke-Jun Kang , Hau-Bin Li , Jian-Min Li , Jin Li , Jun Li , Xia Li , Xin-Ying Li , Xue-Qian Li , Yu-Lan Li , Yuan-Jing Li , Heng-Yi Liao , Fong-Kay Lin , Shin-Ted Lin , Shu-Kui Liu , Lan-Chun Lü , Shao-Ji Mao , Jian-Qiang Qin , Jie Ren , Jing Ren , Xi-Chao Ruan , Man-Bin Shen , Lakhwinder Singh , Manoj Kumar Singh , Arun Kumar Soma , Chang-Jian Tang , Chao-Hsiung Tseng , Ji-Min Wang , Li Wang , Qing Wang , Henry Tsz-King Wong , Shi-Yong Wu , Yu-Cheng Wu , Hao-Yang Xing , Yin Xu , Tao Xue , Li-Tao Yang , Song-Wei Yang , Nan Yi , Chun-Xu Yu , Hao Yu , Xun-Zhen Yu , Xiong-Hui Zeng , Lan Zhang , Yun-Hua Zhang , Ming-Gang Zhao , Wei Zhao , Zu-Ying Zhou , Jing-Jun Zhu , Wei-Bin Zhu , Xue-Zhou Zhu , Zhong-Hua Zhu

Simulation of the cosmic ray tau neutrino telescope (CRTNT) experiment

A tau lepton can be produced in a charged current interaction by cosmic ray tau neutrino with material inside a mountain. If it escapes from the mountain, it will decay and initiate a shower in the air, which can be detected by an air…

High Energy Physics - Experiment · Physics 2009-07-24 J. L. Liu , S. S. Zhang , Z. Cao , H. H. He , M. A. Huang , T. C. Liu , G. Xiao , M. Zha , B. K. Zhang , Y. X. Bai , Y. Zhang

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

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…

High Energy Physics - Experiment · Physics 2022-09-19 R. Xu , L. T. Yang , Q. Yue , K. J. Kang , Y. J. Li , M. Agartioglu , H. P. An , J. P. Chang , Y. H. Chen , J. P. Cheng , W. H. Dai , Z. Deng , C. H. Fang , X. P. Geng , H. Gong , X. Y. Guo , Q. J. Guo , L. He , S. M. He , J. W. Hu , H. X. Huang , T. C. Huang , H. T. Jia , X. Jiang , H. B. Li , J. M. Li , J. Li , Q. Y. Li , R. M. J. Li , X. Q. Li , Y. L. Li , Y. F. Liang , B. Liao , F. K. Lin , S. T. Lin , S. K. Liu , Y. Liu , Y. D. Liu , Y. Y. Liu , Z. Z. Liu , H. Ma , Y. C. Mao , Q. Y. Nie , J. H. Ning , H. Pan , N. C. Qi , J. Ren , X. C. Ruan , K. Saraswat , V. Sharma , Z. She , M. K. Singh , T. X. Sun , C. J. Tang , W. Y. Tang , Y. Tian , G. F. Wang , L. Wang , Q. Wang , Y. Wang , Y. X. Wang , H. T. Wong , S. Y. Wu , Y. C. Wu , H. Y. Xing , Y. Xu , T. Xue , Y. L. Yan , C. H. Yeh , N. Yi , C. X. Yu , H. J. Yu , J. F. Yue , M. Zeng , Z. Zeng , B. T. Zhang , F. S. Zhang , L. Zhang , Z. H. Zhang , Z. Y. Zhang , K. K. Zhao , M. G. Zhao , J. F. Zhou , Z. Y. Zhou , J. J. Zhu

A Search for the Cosmic Ray Boosted Sub-GeV Dark Matter at the PandaX-II Experiment

We report a novel search for the cosmic ray boosted dark matter using the 100~tonne$\cdot$day full data set of the PandaX-II detector located at the China Jinping Underground Laboratory. With the extra energy gained from the cosmic rays,…

High Energy Physics - Experiment · Physics 2022-05-11 Xiangyi Cui , Abdusalam Abdukerim , Zihao Bo , Wei Chen , Xun Chen , Yunhua Chen , Chen Cheng , Yunshan Cheng , Yingjie Fan , Deqing Fang , Changbo Fu , Mengting Fu , Lisheng Geng , Karl Giboni , Linhui Gu , Xuyuan Guo , Ke Han , Changda He , Jinrong He , Di Huang , Yanlin Huang , Zhou Huang , Ruquan Hou , Xiangdong Ji , Yonglin Ju , Chenxiang Li , Mingchuan Li , Shu Li , Shuaijie Li , Qing Lin , Jianglai Liu , Xiaoying Lu , Lingyin Luo , Wenbo Ma , Yugang Ma , Yajun Mao , Yue Meng , Nasir Shaheed , Xuyang Ning , Ningchun Qi , Zhicheng Qian , Xiangxiang Ren , Changsong Shang , Guofang Shen , Lin Si , Wenliang Sun , Andi Tan , Yi Tao , Anqing Wang , Meng Wang , Qiuhong Wang , Shaobo Wang , Siguang Wang , Zhou Wang , Wei Wang , Xiuli Wang , Mengmeng Wu , Weihao Wu , Jingkai Xia , Mengjiao Xiao , Xiang Xiao , Pengwei Xie , Binbin Yan , Xiyu Yan , Jijun Yang , Yong Yang , Chunxu Yu , Jumin Yuan , Ying Yuan , Dan Zhang , Minzhen Zhang , Peng Zhang , Tao Zhang , Li Zhao , Qibin Zheng , Jifang Zhou , Ning Zhou , Xiaopeng Zhou , Yong Zhou

A precise method to determine the activity of a weak neutron source using a germanium detector

A standard high purity germanium (HPGe) detector was used to determine the previously unknown neutron activity of a weak americium-beryllium (AmBe) neutron source. Gamma rays were created through 27Al(n,n'), 27Al(n,gamma) and 1H(n,gamma)…

Instrumentation and Detectors · Physics 2016-08-01 M. J. M. Duke , A. L. Hallin , C. B. Krauss , P. Mekarski , L. Sibley