Impact of semi-annihilations on dark matter phenomenology - an example of Z_N symmetric scalar dark matter

Abstract

We study the impact of semi-annihilations x_i x_j <-> x_k X, where x_i is any dark matter and X is any standard model particle, on dark matter phenomenology. We formulate minimal scalar dark matter models with an extra doublet and a complex singlet that predict non-trivial dark matter phenomenology with semi-annihilation processes for different discrete Abelian symmetries Z_N, N>2. We implement two such example models with Z_3 and Z_4 symmetry in micrOMEGAs and work out their phenomenology. We show that both semi-annihilations and annihilations involving only particles from two different dark matter sectors significantly modify the dark matter relic abundance in this type of models. We also study the possibility of dark matter direct detection in XENON100 in those models.

17 pages, 4 figures

References in corpus (11)

• Gauge Singlet Scalars as Cold Dark Matter
• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• micrOMEGAs2.0: a program to calculate the relic density of dark matter in a generic model
• LHC Phenomenology of an Extended Standard Model with a Real Scalar Singlet
• Indirect search for dark matter with micrOMEGAs2.4
• Complex Singlet Extension of the Standard Model
• Assisted freeze-out
• Z_3 Dark Matter and Two-Loop Neutrino Mass
• Dark Discrete Gauge Symmetries
• Light mixed sneutrinos as thermal dark matter
• Large contributions to dark matter annihilation from three-body final states

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• Theoretical and Experimental Constraints on ${\mathbb{Z}}_{2n}$ Multi-Component Dark Matter Models