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

Green, Anne M.

Authors

Anne M. Green anne.green@nottingham.ac.uk



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.

Journal Article Type Article
Publication Date Jun 26, 2017
Journal Journal of Physics G: Nuclear and Particle Physics
Print ISSN 0954-3899
Electronic ISSN 1361-6471
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 44
Issue 8
APA6 Citation Green, A. M. (2017). Astrophysical uncertainties on the local dark matter distribution and direct detection experiments. Journal of Physics G: Nuclear and Particle Physics, 44(8), doi:10.1088/1361-6471/aa7819
DOI https://doi.org/10.1088/1361-6471/aa7819
Publisher URL http://iopscience.iop.org/article/10.1088/1361-6471/aa7819/meta
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
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.o...8/1361-6471/aa7819/meta

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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