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First experimental constraints on WIMP couplings in the effective field theory framework from CDEX
- Source :
- SCIENCE CHINA Physics, Mechanics & Astronomy; August 2021, Vol. 64 Issue: 8
- Publication Year :
- 2021
-
Abstract
- 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 mχ< 6 GeV/c2region.
Details
- Language :
- English
- ISSN :
- 16747348 and 18691927
- Volume :
- 64
- Issue :
- 8
- Database :
- Supplemental Index
- Journal :
- SCIENCE CHINA Physics, Mechanics & Astronomy
- Publication Type :
- Periodical
- Accession number :
- ejs58053011
- Full Text :
- https://doi.org/10.1007/s11433-020-1666-8