Scalar multiplet dark matter
By T. Hambye, F. Ling, L. Honorez, Jonathan Rocher. 2009
286 citations recorded by the source corpus.
We perform a systematic study of the phenomenology associated to models where the dark matter consists in the neutral component of a scalar SU(2)L n-uplet, up to n = 7. If one includes only the pure gauge induced annihilation cross-sections it is known that such particles provide good dark matter candidates, leading to the observed dark matter relic abundance for a particular value of their mass around the TeV scale. We show that these values actually become ranges of values - which we determine - if one takes into account the annihilations induced by the various scalar couplings appearing in these models. This leads to predictions for both direct and indirect detection signatures as a function of the dark matter mass within these ranges. Both can be largely enhanced by the quartic coupling contributions. We also explain how, if one adds right-handed neutrinos to the scalar doublet case, the results of this analysis allow to have altogether a viable dark matter candidate, successful generation of neutrino masses, and leptogenesis in a particularly minimal way with all new physics at the TeV scale.
View Paper: https://www.semanticscholar.org/paper/d858044745d5028b64b3037f8504692504b52343
How researchers see this paper
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- A. Goudelis
- L. Lopez Honorez
- F. Ling
- B. Herrmann
- E. Nezri
- Oscar Stål
- Romain Teyssier
- E. Athanassoula
Citations in the corpus
- Dark matter direct detection signals inferred from a cosmological N-body simulation with baryons (2009, background): “essed for M DM ˛M Z. orF scalar candidates, the adjustable mass of the charged SU(2) partner of the DM candidate enables to obtain the correct relic density for a whole range of mass at the VeT scale [125]. Finally, the DAMA region with M DM <100 GeV is not excluded by other experiments. orF thes”
- The inert doublet model of dark matter revisited (2010, background): “Three viable regions can be distinguished: a small mass regime with mH0 ∼ 8 GeV [6,11], a large mass regime with mH0 > 500 GeV [7,22,23] and an intermediate mass regime (mH0 .”
- Dark matter in the inert doublet model after the discovery of a Higgs-like boson at the LHC (2013, background): “In particular, the IDM parameter space is known to present three mass regimes for the lightest odd particle (LOP), where the observed relic density can be obtained [3, 10, 37–39]: the so-called low- (1 GeV .”