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Title: Halo-independent tests of dark matter direct detection signals: local DM density, LHC, and thermal freeze-out

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{sup ′} mediator and assuming a signal in a future xenon direct detection experiment.
Authors:
;  [1] ; ;  [2]
  1. Department of Theoretical Physics, School of Engineering Sciences,KTH Royal Institute of Technology,AlbaNova University Center, 106 91 Stockholm (Sweden)
  2. Oskar Klein Centre for Cosmoparticle Physics,Department of Physics, Stockholm University,SE-10691 Stockholm (Sweden)
Publication Date:
OSTI Identifier:
22458364
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2015; Journal Issue: 08; Other Information: PUBLISHER-ID: JCAP08(2015)039; OAI: oai:repo.scoap3.org:11435; Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Sponsoring Org:
SCOAP3, CERN, Geneva (Switzerland)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 43 PARTICLE ACCELERATORS; ASTROPHYSICS; CERN LHC; CROSS SECTIONS; DENSITY; DETECTION; NONLUMINOUS MATTER; NUCLEONS; SCATTERING; SIGNALS; XENON