Warm Dark Matter from keVins
2012 (English)In: Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, no 8, 016- p.Article in journal (Refereed) Published
We propose a simple model for Warm Dark Matte (WDM) in which two femions are added to the Standard,Model: (quasi-) stable "keVins" (keV inert fermions) which account for WDM and their unstable brothers, the "GeVins" (GeV inert fermions), both of which carry zero electric charge and zero lepton number, and are (approximately) "inert", in the sense that their only interactions are via suppressed couplings to the Z. We consider scenarios in which stable keVins are thermally produced and their abundance is subsequently diluted by entropy production from the decays of the heavier unstable GeVins. This mechanism could be implemented in a wide variety of models, including E-6 inspired supersymmetric models or models involving sterile neutrinos.
Place, publisher, year, edition, pages
2012. no 8, 016- p.
dark matter theory, cosmology of theories beyond the SM, cosmological neutrinos
IdentifiersURN: urn:nbn:se:kth:diva-105023DOI: 10.1088/1475-7516/2012/08/016ISI: 000308800700017OAI: oai:DiVA.org:kth-105023DiVA: diva2:570295
FunderEU, FP7, Seventh Framework Programme, PIEF-GA-2011-297557
QC 201211192012-11-192012-11-152012-11-19Bibliographically approved