On the Direct Detection of Dark Matter Annihilation

Content Provider	Semantic Scholar
Author	Cherry, John F. Frandsen, Mads Toudal Shoemaker, Ian M.
Copyright Year	2015
Abstract	We investigate the direct detection phenomenology of a class of dark matter (DM) models in which DM does not directly interact with nuclei, but rather the products of its annihilation do. When these annihilation products are very light compared to the DM mass, the scattering in direct detection experiments is controlled by relativistic kinematics. This results in a distinctive recoil spectrum, a non-standard and or even absent annual modulation, and the ability to probe DM masses as low as a ∼10 MeV. We use current LUX data to show that experimental sensitivity to thermal relic annihilation cross sections has already been reached in a class of models. Moreover, the compatibility of dark matter direct detection experiments can be compared directly in Emin space without making assumptions about DM astrophysics, mass, or scattering form factors. Lastly, when DM has direct couplings to nuclei, the limit from annihilation to relativistic particles in the Sun can be stronger than that of conventional non-relativistic direct detection by more than three orders of magnitude for masses in a 2-7 GeV window.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://inspirehep.net/record/1339222/files/arXiv:1501.03166.pdf
Language	English
Access Restriction	Open
Subject Keyword	Borg Scale Rating of Perceived Exertion Score 9 Computer form factor Cross section (geometry) Dark Matter Experiment Greater Than Inverse kinematics Medical Device Incompatibility Problem Modulation Thermal grease lux unit orders - HL7PublishingDomain
Content Type	Text
Resource Type	Article