Back to Search
Start Over
PandaX-II constraints on spin-dependent WIMP-nucleon effective interactions
- Source :
- Physics Letters B, Vol 792, Iss , Pp 193-198 (2019)
- Publication Year :
- 2019
- Publisher :
- Elsevier, 2019.
-
Abstract
- We present PandaX-II constraints on candidate WIMP-nucleon effective interactions involving the nucleon or WIMP spin, including, in addition to standard axial spin-dependent (SD) scattering, various couplings among vector and axial currents, magnetic and electric dipole moments, and tensor interactions. The data set corresponding to a total exposure of 54-ton-days is reanalyzed to determine constraints as a function of the WIMP mass and isospin coupling. We obtain WIMP-nucleon cross section bounds of 1.6×10−41 cm2 and 9.0×10−42 cm2 (90% c.l.) for neutron-only SD and tensor coupling, respectively, for a mass MWIMP∼40GeV/c2. The SD limits are the best currently available for MWIMP>40GeV/c2. We show that PandaX-II has reached a sensitivity sufficient to probe a variety of other candidate spin-dependent interactions at the weak scale. Keywords: PandaX-II experiment, WIMP dark matter, Spin-dependent effective interactions
Details
- Language :
- English
- ISSN :
- 03702693
- Volume :
- 792
- Issue :
- 193-198
- Database :
- Directory of Open Access Journals
- Journal :
- Physics Letters B
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.8a27fc16513b43a4bace9da00bef592a
- Document Type :
- article
- Full Text :
- https://doi.org/10.1016/j.physletb.2019.02.043