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3 results on '"J P, Chang"'

1. Constraints on axion couplings from the CDEX-1 experiment at the China Jinping Underground Laboratory

Author

X. H. Zeng, X. Z. Yu, L. T. Yang, Jia-Ming Li, Yunhua Chen, Hechuan Jiang, L. C. Lü, Hong-Jian He, Q. Wang, Xiang Li, C. X. Yu, R. Q. Xiao, J. P. Chang, Q. Du, C. W. Yang, Huihui Yu, H. B. Li, Hanxiong Huang, J. Li, J. M. Wang, Hao-Yang Xing, Yucheng Wu, Honghan Gong, Wei Zhao, Xun-Jie Xu, Z. Y. Zhou, N. Yi, F. K. Lin, J. Cheng, Man-Bin Shen, V. Sharma, Tian Xue, Song-Wei Yang, Qing-Hao Chen, M. K. Singh, S. J. Mao, J. Q. Qin, X. Q. Li, X. C. Ruan, Shengzhou Wu, K. Kang, Qian Yue, J. L. Ma, Jun Ren, X. Z. Zhu, Henry T. Wong, Yuanjing Li, H. L. Ma, Wei-Bin Zhu, Shin-Ted Lin, M. G. Zhao, Jiang Zhu, L. Zhang, Y. Li, N. Chen, Xiao-yan Li, Jian Su, Zhi Zeng, Yin Xu, Zhi Deng, Y. Zhang, Zhong-Hua Zhu, F. Z. Xu, Lakhwinder Singh, Jing-Han Chen, L. S. Wang, Arun Kumar Soma, Z. Z. Xianyu, S. K. Liu, Qing-Ju He, and C. J. Tang

Subjects
Coupling, Physics, Particle physics, 010308 nuclear & particles physics, Axion Dark Matter Experiment, 0103 physical sciences, Dark matter, Bremsstrahlung, China Jinping Underground Laboratory, 010306 general physics, 01 natural sciences, Axion, Semiconductor detector
Abstract

We report the results of searches for solar axions and galactic dark matter axions or axion-like particles with CDEX-1 experiment at the China Jinping Underground Laboratory, using 335.6 kg-days of data from a p-type point-contact germanium detector. The data are compatible with the background model and no excess signals are observed. Limits of solar axions on the model independent coupling $g_{Ae}

Published
2017
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2. Limits on light weakly interacting massive particles from the CDEX-1 experiment with ap-type point-contact germanium detector at the China Jinping Underground Laboratory

Author

Zhong-Hua Zhu, X. Q. Hao, X. Z. Yu, Chao-Hsiung Tseng, Jia-Ming Li, J. Q. Qin, S. J. Mao, R. Q. Xiao, L. Zhang, Honghan Gong, Arun Kumar Soma, C. X. Yu, Song-Wei Yang, Qing Wang, Z. Z. Xianyu, H. B. Li, Qian Yue, Hao-Yang Xing, Y. Li, X. Q. Li, Yuanjing Li, Q. Du, Yunhua Chen, Yin Xu, H. Y. Liao, H. L. Ma, L. S. Wang, J. P. Chang, Hechuan Jiang, Manoj Kumar Singh, L. C. Lü, Teng-Rui Huang, Wei Zhao, Shengzhou Wu, Xun-Jie Xu, Man-Bin Shen, Hanxiong Huang, Yucheng Wu, F. K. Lin, X. C. Ruan, K. Kang, F. Z. Xu, Qing-Hao Chen, J. Cheng, Z. Y. Deng, Xiao-yan Li, X. H. Zeng, X. Z. Zhu, Hong-Jian He, L. Singh, J. Li, Y. C. Chuang, J. M. Wang, Jun Ren, Henry T. Wong, Jian Su, Y. Zhang, S. K. Liu, C. J. Tang, Qing-Ju He, N. Yi, L. T. Yang, Huihui Yu, Tian Xue, Z. Y. Zhou, M. G. Zhao, Wei-Bin Zhu, Shin-Ted Lin, Jiang Zhu, N. Chen, and Zhi Zeng

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Physics::Instrumentation and Detectors, Dark matter, China Jinping Underground Laboratory, WIMP Argon Programme, Particle detector, Nuclear physics, WIMP, China Dark Matter Experiment, Weakly interacting massive particles, High Energy Physics::Experiment, Light dark matter
Abstract

We report results of a search for light dark matter weakly interacting massive particles (WIMPs) with CDEX-1 experiment at the China Jinping Underground Laboratory, based on 53.9 kg-days of data from a p -type point-contact germanium detector enclosed by a NaI(Tl) crystal scintillator as anti-Compton detector. The event rate and spectrum above the analysis threshold of 475 eVee are consistent with the understood background model. Part of the allowed regions for WIMP-nucleus coherent elastic scattering at WIMP mass of 6–20 GeV are probed and excluded. Independent of interaction channels, this result contradicts the interpretation that the anomalous excesses of the CoGeNT experiment are induced by dark matter, since identical detector techniques are used in both experiments.

Published
2014
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3. First results on low-mass WIMPs from the CDEX-1 experiment at the China Jinping underground laboratory

Author

W. Zhao, Q. Yue, K. J. Kang, J. P. Cheng, Y. J. Li, S. T. Lin, Y. Bai, Y. Bi, J. P. Chang, N. Chen, Q. H. Chen, Y. H. Chen, Y. C. Chuang, Z. Deng, C. Du, Q. Du, H. Gong, X. Q. Hao, H. J. He, Q. J. He, X. H. Hu, H. X. Huang, T. R. Huang, H. Jiang, H. B. Li, J. M. Li, J. Li, X. Li, X. Y. Li, Y. L. Li, H. Y. Liao, F. K. Lin, S. K. Liu, L. C. Lü, H. Ma, S. J. Mao, J. Q. Qin, J. Ren, X. C. Ruan, M. B. Shen, L. Singh, M. K. Singh, A. K. Soma, J. Su, C. J. Tang, C. H. Tseng, J. M. Wang, L. Wang, Q. Wang, H. T. Wong, S. Y. Wu, W. Wu, Y. C. Wu, Z. Z. Xianyu, H. Y. Xing, Y. Xu, X. J. Xu, T. Xue, L. T. Yang, S. W. Yang, N. Yi, C. X. Yu, H. Yu, X. Z. Yu, X. H. Zeng, Z. Zeng, L. Zhang, Y. H. Zhang, M. G. Zhao, S. N. Zhong, Z. Y. Zhou, J. J. Zhu, W. B. Zhu, X. Z. Zhu, and Z. H. Zhu

Subjects
Physics, Nuclear and High Energy Physics, Particle physics, Physics - Instrumentation and Detectors, Cosmology and Nongalactic Astrophysics (astro-ph.CO), Dark matter, China Jinping Underground Laboratory, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), WIMP, China Dark Matter Experiment, Weakly interacting massive particles, Cryogenic Dark Matter Search, Low Mass, Energy (signal processing), Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract

The China Dark matter Experiment collaboration reports the first experimental limit on WIMP dark matter from 14.6 kg-day of data taken with a 994 g p-type point-contact germanium detector at the China Jinping underground Laboratory where the rock overburden is more than 2400 m. The energy threshold achieved was 400 eVee. According to the 14.6 kg-day live data, we placed the limit of N= 1.75 * 10^{-40} cm^{2} at 90% confidence level on the spin-independent cross-section at WIMP mass of 7 GeV before differentiating bulk signals from the surface backgrounds., Comment: 5 pages, 5 figures

Published
2013
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