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

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 data both CDEX-1B and CDEX-10 stages. In nonrelativistic approach, time-integrated annual modulation analyses were used to set new limits for coupling WIMP-nucleon operators at 90% confidence level (C.L.) improve over current bounds in low $m_{\chi}$ region. chiral an upper limit WIMP-pion C.L. first time extended $m_{\chi}<$ 6 GeV/$c^2$