Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2011-06-16
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 3 figures; v2: references and comments added, figures re-styled, to appear on PRD
Scientific paper
A recent study of gamma-ray data from the Galactic Center motivates the investigation of light (~7-10 GeV) particle dark matter models featuring tau lepton pairs as dominant annihilation final state. The Lepton-Specific two-Higgs-doublet Model (2HDM-L) 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 2HDM-L 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 needed to interpret recent anomalous events reported by direct detection experiments.
Boucenna M. S.
Profumo Stefano
No associations
LandOfFree
Direct and Indirect Singlet Scalar Dark Matter Detection in the Lepton-Specific two-Higgs-doublet Model does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Direct and Indirect Singlet Scalar Dark Matter Detection in the Lepton-Specific two-Higgs-doublet Model, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Direct and Indirect Singlet Scalar Dark Matter Detection in the Lepton-Specific two-Higgs-doublet Model will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-695368