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Halo-independent tests of dark matter direct detection signals: local DM density, LHC, and thermal freeze-out
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).
Number of Authors: 4
2015 (English)In: Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, E-ISSN 1475-7516, no 8, 039Article in journal (Refereed) Published
Abstract [en]

From an assumed signal in a Dark Matter (DM) direct detection experiment a lower bound on the product of the DM-nucleon scattering cross section and the local DM density is derived, which is independent of the local DM velocity distribution. This can be combined with astrophysical determinations of the local DM density. Within a given particle physics model the bound also allows a robust comparison of a direct detection signal with limits from the LHC. Furthermore, the bound can be used to formulate a condition which has to be fulfilled if the particle responsible for the direct detection signal is a thermal relic, regardless of whether it constitutes all DM or only part of it. We illustrate the arguments by adopting a simplified DM model with a Z' mediator and assuming a signal in a future xenon direct detection experiment.

Place, publisher, year, edition, pages
2015. no 8, 039
Keyword [en]
dark matter theory, dark matter experiments
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-123855DOI: 10.1088/1475-7516/2015/08/039ISI: 000365046600039OAI: oai:DiVA.org:su-123855DiVA: diva2:878365
Available from: 2015-12-08 Created: 2015-12-08 Last updated: 2015-12-08Bibliographically approved

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