Significant Gamma Lines from Inert Higgs Dark Matter

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dc.creatorGustafsson, Michael
dc.creatorLundstrom, Erik
dc.creatorBergstrom, Lars
dc.creatorEdsjo, Joakim
dc.date2007-03-20
dc.date2007-10-05
dc.date.accessioned2026-07-07T11:21:22Z
dc.date.available2026-07-07T11:21:22Z
dc.descriptionOne way to unambiguously confirm the existence of particle dark matter and determine its mass would be to detect its annihilation into monochromatic gamma-rays in upcoming telescopes. One of the most minimal models for dark matter is the inert doublet model, obtained by adding another Higgs doublet with no direct coupling to fermions. For a mass between 40 and 80 GeV, the lightest of the new inert Higgs particles can give the correct cosmic abundance of cold dark matter in agreement with current observations. We show that for this scalar dark matter candidate, the annihilation signal of monochromatic γγand Zγfinal states would be exceptionally strong. The energy range and rates for these gamma-ray line signals make them ideal to search for with the soon upcoming GLAST satellite.
dc.description4 pages, 3 figures; minor changes and text improvements; references updated; published version
dc.identifierhttps://arxiv.org/abs/astro-ph/0703512
dc.identifierhttp://arxiv.org/abs/astro-ph/0703512
dc.identifierPhys.Rev.Lett.99:041301,2007
dc.identifierdoi:10.1103/PhysRevLett.99.041301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194243
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSignificant Gamma Lines from Inert Higgs Dark Matter
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