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Constraining the Spin-Dependent WIMP-Nucleon Cross Sections with XENON1T
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC). Nikhef and the University of Amsterdam, Netherlands.
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Number of Authors: 1312019 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 122, no 14, article id 141301Article in journal (Refereed) Published
Abstract [en]

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 x 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.

Place, publisher, year, edition, pages
2019. Vol. 122, no 14, article id 141301
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Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-168287DOI: 10.1103/PhysRevLett.122.141301ISI: 000463902500001OAI: oai:DiVA.org:su-168287DiVA, id: diva2:1308049
Available from: 2019-04-30 Created: 2019-04-30 Last updated: 2019-12-04Bibliographically approved

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Aalbers, JelleAntochi, Vasile CristianBauermeister, BorisConrad, JanFerella, Alfredo D.Lindner, M.Mahlstedt, JörnMorå, KnutPelssers, Bart
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
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