Astrophysical uncertainties on the local dark matter distribution and direct detection experiments

Green, Anne M. (2017) Astrophysical uncertainties on the local dark matter distribution and direct detection experiments. Journal of Physics G: Nuclear and Particle Physics, 44 (8). 084001. ISSN 1361-6471

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Abstract

The differential event rate in weakly interacting massive particle (WIMP) direct detection experiments depends on the local dark matter density and velocity distribution. Accurate modelling of the local dark matter distribution is therefore required to obtain reliable constraints on the WIMP particle physics properties. Data analyses typically use a simple standard halo model which might not be a good approximation to the real Milky Way (MW) halo. We review observational determinations of the local dark matter density, circular speed and escape speed and also studies of the local dark matter distribution in simulated MW-like galaxies. We discuss the effects of the uncertainties in these quantities on the energy spectrum and its time and direction dependence. Finally, we conclude with an overview of various methods for handling these astrophysical uncertainties.

Item Type: Article
Additional Information: This is an author-created, un-copyedited version of an article accepted for publication in Journal of Physics G: Nuclear and Particle Physics. Anne M Green 2017 J. Phys. G: Nucl. Part. Phys. 44 084001 The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://iopscience.iop.org/article/10.1088/1361-6471/aa7819/meta
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
Identification Number: 10.1088/1361-6471/aa7819
Depositing User: Green, Anne
Date Deposited: 27 Jun 2017 12:47
Last Modified: 27 Jun 2017 12:50
URI: http://eprints.nottingham.ac.uk/id/eprint/43779

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