The impact of going beyond the Maxwell distribution in direct dark matter detection rates

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dc.creatorVergados, J. D.
dc.creatorHansen, S. H.
dc.creatorHost, O.
dc.date2007-11-30
dc.date.accessioned2026-07-07T12:13:56Z
dc.date.available2026-07-07T12:13:56Z
dc.descriptionWe consider direct dark matter detection rates and investigate the difference between a standard Maxwell-Boltzmann velocity distribution and a "realistic" distribution like the ones extracted from numerical N-body simulations. Sizable differences are observed when such results are compared to the standard Maxwell-Boltzmann distribution. For a light target both the total rate and the annual modulation are reduced by ~25%. For a heavy target the total rate is virtually unchanged, whereas the annual modulation is modified by up to 50%, depending on the WIMP mass and detector energy threshold. We also consider the effect of a possible velocity anisotropy, and the effect is found to be largest for a light target For the realistic velocity distribution the anisotropy may reduce the annual modulation, in contrast to the Maxwell-Boltzmann case.
dc.description13 pages, 10 figures, accepted by Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0711.4895
dc.identifierhttp://arxiv.org/abs/0711.4895
dc.identifierPhys.Rev.D77:023509,2008
dc.identifierdoi:10.1103/PhysRevD.77.023509
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211023
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleThe impact of going beyond the Maxwell distribution in direct dark matter detection rates
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