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

• DOI: 10.1007/s11433-020-1666-8
• Publication Date: 2021-05-04T23:44:48Z
• Authors: Yi Wang; Zhi Zeng; Qian Yue; LiTao Yang; KeJun Kang; YuanJing Li; Mehment Ağartioğlu; 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; YuChen 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
• Keywords: WIMP; Effective field theory; Field theory (psychology)

version accepted by Science China-PMA, 8 pages, 8 figures<br/>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 $m_��$ region. 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_��<br/>