On the DAMA and CoGeNT Modulations

Mads Toudal Frandsen, Felix Kahlhoefer, John March-Russell, Christopher McCabe, Matthew McCullough, Kai Schmidt-Hoberg

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Abstrakt

DAMA observes an annual modulation in their event rate, as might be expected from dark matter scatterings, while CoGeNT has reported evidence for a similar modulation. The simplest interpretation of these findings in terms of dark matter-nucleus scatterings is excluded by other direct detection experiments. We consider the robustness of these exclusions with respect to assumptions regarding the scattering and find that isospin-violating inelastic dark matter helps alleviate this tension and allows marginal compatibility between experiments. Isospin-violation can significantly weaken the XENON constraints, while inelasticity enhances the annual modulation fraction of the signal, bringing the CoGeNT and CDMS results into better agreement.
OriginalsprogUdefineret/Ukendt
Artikelnummer041301
TidsskriftPhysical Review D
Vol/bind84
Udgave nummer4
Antal sider5
ISSN2470-0010
DOI
StatusUdgivet - 2011

Emneord

  • hep-ph
  • astro-ph.HE
  • hep-ex

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