Low-mass extension of direct detection bounds on WIMP-quark and WIMP-gluon effective interactions using the Migdal effect

被引：4
作者：
Tomar, Gaurav [1 ]
Kang, Sunghyun [2 ]
Scopel, Stefano [2 ]
机构：
[1] Tech Univ Munich, Phys Dept, James Franck Str, D-85748 Garching, Germany
[2] Sogang Univ, Dept Phys, Seoul 121742, South Korea
来源：
ASTROPARTICLE PHYSICS | 2023年 / 150卷
基金：
新加坡国家研究基金会;
关键词：
Dark Matter; Direct detection; Migdal effect; Effective theories; DARK-MATTER SEARCH; SENSITIVITY; IONIZATION; ELECTRONS;
D O I：
10.1016/j.astropartphys.2023.102851
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Updating a previous analysis where we used elastic nuclear recoils we study the Migdal effect to extend to low WIMP masses the direct detection bounds to operators up to dimension 7 of the relativistic effective field theory describing WIMP interactions with quarks and gluons. To this aim we include in our analysis the data of the XENON1T, SuperCDMS, COSINE-100, and DarkSide-50 experiments and assume a standard Maxwellian for the WIMP velocity distribution. We find that the bounds can reach down to a WIMP mass similar or equal to 20 MeV, although in the case of higher-dimension operators the energy scale of the ensuing constraints may be inconsistent with the validity of the effective theory.
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页数：7
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