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First experimental constraints on WIMP couplings in the effective field theory framework from CDEX

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Abstract

We present weakly interacting massive particles (WIMPs) search results performed using two approaches of effective field theory from the China Dark Matter Experiment (CDEX), based on the data from both CDEX-1B and CDEX-10 stages. In the nonrelativistic effective field theory approach, both time-integrated and annual modulation analyses were used to set new limits for the coupling of WIMP-nucleon effective operators at 90% confidence level (C.L.) and improve over the current bounds in the low mχregion. In the chiral effective field theory approach, data from CDEX-10 were used to set an upper limit on WIMP-pion coupling at 90% C.L. We for the first time extended the limit to the mχ < 6 GeV/c2 region.

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Authors and Affiliations

  1. Key Laboratory of Particle and Radiation Imaging (Ministry of Education), Department of Engineering Physics, Tsinghua University, Beijing, 100084, China

    Yi Wang, Zhi Zeng, Qian Yue, LiTao Yang, KeJun Kang, YuanJing Li, HaiPeng An, JianPing Cheng, WenHan Dai, Zhi Deng, XinPing Geng, Hui Gong, HongJian He, JinWei Hu, LiPing Jia, JianMin Li, Jin Li, YuLan Li, ZhongZhi Liu, Hao Ma, QiYuan Nie, Ze She, WeiYou Tang, Yang Tian, Qing Wang, YuChen Wang, YuCheng Wu, Tao Xue, Nan Yi, Ming Zeng, BingTao Zhang & ZhenYu Zhang

  2. Department of Physics, Tsinghua University, Beijing, 100084, China

    Yi Wang, HaiPeng An, HongJian He & Qing Wang

  3. Institute of Physics, Academia Sinica, Taipei, 11529, China

    Mehment Ağartioğlu, JingHan Chen, Cheng Yi Chiang, HauBin Li, FongKay Lin, Vivek Sharma, Lakhwinder Singh, Monoj Kumar Singh & Henry Tsz-King Wong

  4. NUCTECH Company, Beijing, 100084, China

    JianPing Chang, Li He, Hui Pan & HaiJun Yu

  5. YaLong River Hydropower Development Company, Chengdu, 610051, China

    YunHua Chen, XuYuan Guo, ShengMing He, JinHua Ning, NingChun Qi, ChangSong Shang, ShiYong Wu, JianFeng Yue & JiFang Zhou

  6. College of Nuclear Science and Technology, Beijing Normal University, Beijing, 100875, China

    JianPing Cheng, Bin Liao, YanDong Liu, YuanYuan Liu, TianXi Sun, GuangFu Wang & FengShou Zhang

  7. College of Physics, Sichuan University, Chengdu, 610065, China

    ChangHao Fang, HaiTao Jia, Xi Jiang, MingXuan Li, RenMingJie Li, ShinTed Lin, ShuKui Liu, Yu Liu, ChangJian Tang, Zhen Wang, HaoYang Xing, YuLu Yan, Lei Zhang, KangKang Zhao & JingJun Zhu

  8. School of Physics, Peking University, Beijing, 100871, China

    QiuJu Guo, YuCai Mao & YunXiang Wang

  9. Sino-French Institute of Nuclear and Technology, Sun Yet-sen University, Zhuhai, 519082, China

    TuChen Huang

  10. Department of Nuclear Physics, China Institute of Atomic Energy, Beijing, 102413, China

    HanXiong Huang, Xia Li, Jie Ren, XiChao Ruan & ZuYing Zhou

  11. Department of Physics, Banaras Hindu University, Varanasi, 221005, India

    Vivek Sharma, Lakhwinder Singh & Monoj Kumar Singh

  12. Department of Physics, Beijing Normal University, Beijing, 100875, China

    Li Wang

  13. School of Physics, Nankai University, Tianjin, 300071, China

    Yin Xu, ChunXu Yu & MingGang Zhao

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  1. Yi Wang
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CDEX Collaboration

Corresponding author

Correspondence to Qian Yue.

Additional information

Participating as a member of TEXONO Collaboration

This work was supported by the National Key Research and Development Program of China (Grant No. 2017YFA0402200), and the National Natural Science Foundation of China (Grant Nos. 11725522, 11675088, 11475099, and U1865205). We are grateful to YuFeng Zhou for helpful discussion.

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Wang, Y., Zeng, Z., Yue, Q. et al. First experimental constraints on WIMP couplings in the effective field theory framework from CDEX. Sci. China Phys. Mech. Astron. 64, 281011 (2021). https://doi.org/10.1007/s11433-020-1666-8

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  • DOI: https://doi.org/10.1007/s11433-020-1666-8

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