TY  - JOUR
AU  - Boucenna, M. S.
AU  - Profumo, S.
PY  - 2011
DA  - 2011//
TI  - Direct and indirect singlet scalar dark matter detection in the lepton-specific two-Higgs-doublet model
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 055011
EP  - 7pp
VL  - 84
IS  - 5
PB  - Amer Physical Soc
AB  - 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.
SN  - 1550-7998
UR  - http://arxiv.org/abs/1106.3368
UR  - https://doi.org/10.1103/PhysRevD.84.055011
DO  - 10.1103/PhysRevD.84.055011
LA  - English
N1  - WOS:000294927600006
ID  - Boucenna+Profumo2011
ER  -