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Accurate calculations of the WIMP halo around the Sun and prospects for gamma ray detection
KTH, School of Engineering Sciences (SCI), Theoretical Physics, Theoretical Particle Physics.
Department of Physics, Stockholm University.
2008 (English)In: Identification of dark matter 2008: idm2008, SISSA , 2008, 112- p.Conference paper (Refereed)
Abstract [en]

Weakly interacting massive particles (WIMPs) can be captured by heavenly objects, like the Sun.Under the process of being captured by the Sun, they will build up a population of WIMPs aroundit, that will eventually sink to the core of the Sun. It has been argued with simpler estimatesbefore that this halo of WIMPs around the Sun could be a strong enough gamma ray source to bea detectable signature for WIMP dark matter. We here revisit the problem using detailed MonteCarlo simulations and detailed composition and structure information about the Sun to estimatethe size of the gamma ray flux. Compared to earlier estimates, we find that the gamma ray fluxfrom WIMP annihilations in the Sun halo would be negligible and no current or planned detectorswould even be able to detect this flux.

Place, publisher, year, edition, pages
SISSA , 2008. 112- p.
, Proceedings of Science (PoS), ISSN ISSN 1824-8039
National Category
Subatomic Physics
URN: urn:nbn:se:kth:diva-50756ScopusID: 2-s2.0-84882306946OAI: diva2:462616
Identification of dark matter
QC 20111209Available from: 2011-12-09 Created: 2011-12-07 Last updated: 2011-12-09Bibliographically approved

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