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First experimental constraints on WIMP couplings in the effective field theory framework from CDEX
- Source :
- Sci. China-Phys. Mech. Astron. 64, 281011 (2021)
- Publication Year :
- 2020
-
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 $m_{\chi}$ 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 $m_{\chi}<$ 6 GeV/$c^2$ region.<br />Comment: version accepted by Science China-PMA, 8 pages, 8 figures
Details
- Database :
- arXiv
- Journal :
- Sci. China-Phys. Mech. Astron. 64, 281011 (2021)
- Publication Type :
- Report
- Accession number :
- edsarx.2007.15555
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1007/s11433-020-1666-8