%0 Journal Article
%T Direct and indirect singlet scalar dark matter detection in the lepton-specific two-Higgs-doublet model
%A Boucenna, M. S.
%A Profumo, S.
%J Physical Review D
%D 2011
%V 84
%N 5
%I Amer Physical Soc
%@ 1550-7998
%G English
%F Boucenna+Profumo2011
%O WOS:000294927600006
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=756), last updated on Mon, 03 Oct 2011 13:46:48 +0000
%X A recent study of gamma-ray data from the Galactic center motivates the investigation of light (similar to 7-10 GeV) particle dark matter models featuring tau-lepton pairs as dominant annihilation final state. The lepton-specific two-Higgs-doublet model provides a natural framework where light, singlet scalar dark matter can pair-annihilate dominantly into tau leptons. We calculate the nucleon-dark matter cross section for singlet scalar dark matter within the lepton-specific two-Higgs-doublet model framework, and compare with recent results from direct detection experiments. We study how direct dark matter searches can be used to constrain the dark matter interpretation of gamma-ray observations, for different dominant annihilation final states. We show that models exist with the correct thermal relic abundance that could fit the claimed gamma-ray excess from the Galactic center region and have direct detection cross sections of the order of what is needed to interpret recent anomalous events reported by direct detection experiments.
%R 10.1103/PhysRevD.84.055011
%U http://arxiv.org/abs/1106.3368
%U https://doi.org/10.1103/PhysRevD.84.055011
%P 055011-7pp