Comprehensive constraints on fermionic dark matter-quark tensor interactions in direct detection experiments  

作　　者：Jin-Han Liang Yi Liao Xiao-Dong Ma Hao-Lin Wang 梁锦汉;廖益;马小东;王昊琳(Key Laboratory of Atomic and Subatomic Structure and Quantum Control(MOE),Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China;Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Guangdong Provincial Key Laboratory of Nuclear Science,Southern Nuclear Science Computing Center,South China Normal University,Guangzhou 510006,China)

机构地区：[1]Key Laboratory of Atomic and Subatomic Structure and Quantum Control(MOE),Guangdong Basic Research Center of Excellence for Structure and Fundamental Interactions of Matter,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China [2]Guangdong-Hong Kong Joint Laboratory of Quantum Matter,Guangdong Provincial Key Laboratory of Nuclear Science,Southern Nuclear Science Computing Center,South China Normal University,Guangzhou 510006,China

出　　处：《Chinese Physics C》2024年第12期37-49,共13页中国物理C（英文版）

基　　金：Supported in part by the Major Project of Basic and Applied Basic Research of Guangdong Province,China(2020B0301030008);the National Natural Science Foundation of China(12035008,12247151,12305110,12347121)。

摘　　要：Effective field theory(EFT)provides a model-independent framework for interpreting the results of dark matter(DM)direct detection experiments.In this study,we demonstrate that the two fermionic DM-quark tensor operators(χiσ^(μν)γ^(5)χ)(qσ_(μν)q)and(χσ_(μν)χ)(qσ_(μν)q)can contribute to the DM electric and magnetic dipole moments via nonperturbative QCD effects,in addition to the well-studied contact DM-nucleon operators.We then investigate the constraints on these two operators by considering both the contact and dipole contributions using the XENON1T nuclear recoil and Migdal effect data.We also recast other existing bounds on the DM dipole operators,derived from electron and nuclear recoil measurements in various direct detection experiments,as constraints on the two tensor operators.For m_(χ)■1GeV,our results significantly extend the reach of constraints on the DM-quark tensor operators to masses as low as 5MeV,with the bound exceeding that obtained by the Migdal effect with only contact interactions by approximately an order of magnitude.In particular,for the operator(χσ^(μν)iγ5χ)(qσ_(μν)q)with DM mass m_(χ)■10GeV,the latest PandaX constraint on the DM electric dipole moment puts more stringent bounds than the previous direct detection limit.We also briefly discuss the constraints obtained from experiments other than direct detection.

关 键 词：fermionic dark matter effective field theories tensor interactions 

分 类 号：P145.9[天文地球—天体物理] O572.33[天文地球—天文学]