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

作　　者：Yi Wang Zhi Zeng Qian Yue LiTao Yang KeJun Kang YuanJing Li Mehment Agartioglu HaiPeng An JianPing Chang JingHan Chen YunHua Chen JianPing Cheng Cheng Yi Chiang WenHan Dai Zhi Deng ChangHao Fang XinPing Geng Hui Gong QiuJu Guo XuYuan Guo HongJian He Li He ShengMing He JinWei Hu TuChen Huang HanXiong Huang HaiTao Jia LiPing Jia Xi Jiang HauBin Li JianMin Li Jin Li MingXuan Li RenMingJie Li Xia Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu Yu Liu YuanYuan Liu ZhongZhi Liu Hao Ma YuCai Mao QiYuan Nie JinHua Ning Hui Pan NingChun Qi Jie Ren XiChao Ruan ChangSong Shang Vivek Sharma Ze She Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang Li Wang Qing Wang Yu Chen Wang YunXiang Wang Zhen Wang Henry Tsz-King Wong ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue YuLu Yan Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue Ming Zeng BingTao Zhang Lei Zhang FengShou Zhang ZhenYu Zhang KangKang Zhao MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu 

机构地区：[1]Key Laboratory of Particle and Radiation Imaging(Ministry of Education),Department of Engineering Physics,Tsinghua University,Beijing 100084,China [2]Department of Physics,Tsinghua University,Beijing 100084,China [3]Institute of Physics,Academia Sinica,Taipei 11529,China [4]NUCTECH Company,Beijing 100084,China [5]YaLong River Hydropower Development Company,Chengdu 610051,China [6]College of Nuclear Science and Technology,Beijing Normal University,Beijing 100875,China [7]College of Physics,Sichuan University,Chengdu 610065,China [8]School of Physics,Peking University,Beijing 100871,China [9]Sino-French Institute of Nuclear and Technology,Sun Yet-sen University,Zhuhai 519082,China [10]Department of Nuclear Physics,China Institute of Atomic Energy,Beijing 102413,China [11]Department of Physics,Banaras Hindu University,Varanasi 221005,India [12]Department of Physics,Beijing Normal University,Beijing 100875,China [13]School of Physics,Nankai University,Tianjin 300071,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2021年第8期15-22,共8页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Key Research and Development Program of China(Grant No.2017YFA0402200);the National Natural Science Foundation of China(Grant Nos.11725522,11675088,11475099;U1865205)。

摘　　要：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 m_(χ)<6 GeV/c^(2) region.

关 键 词：WIMP EFT CDEX dark matter annual modulation 

分 类 号：P145.9[天文地球—天体物理]