Constraining the Spin-Dependent WIMP-Nucleon Cross Sections with XENON1T.
Journal
Physical review letters
ISSN: 1079-7114
Titre abrégé: Phys Rev Lett
Pays: United States
ID NLM: 0401141
Informations de publication
Date de publication:
12 Apr 2019
12 Apr 2019
Historique:
revised:
07
03
2019
received:
08
02
2019
entrez:
4
5
2019
pubmed:
6
5
2019
medline:
6
5
2019
Statut:
ppublish
Résumé
We report the first experimental results on spin-dependent elastic weakly interacting massive particle (WIMP) nucleon scattering from the XENON1T dark matter search experiment. The analysis uses the full ton year exposure of XENON1T to constrain the spin-dependent proton-only and neutron-only cases. No significant signal excess is observed, and a profile likelihood ratio analysis is used to set exclusion limits on the WIMP-nucleon interactions. This includes the most stringent constraint to date on the WIMP-neutron cross section, with a minimum of 6.3×10^{-42} cm^{2} at 30 GeV/c^{2} and 90% confidence level. The results are compared with those from collider searches and used to exclude new parameter space in an isoscalar theory with an axial-vector mediator.
Identifiants
pubmed: 31050482
doi: 10.1103/PhysRevLett.122.141301
doi:
Types de publication
Journal Article
Langues
eng