Thermal dark matter co-annihilating with a strongly interacting scalar

Abstract

Recently many investigations have considered Majorana dark matter co-annihilating with bound states formed by a strongly interacting scalar field. However only the gluon radiation contribution to bound state formation and dissociation, which at high temperatures is subleading to soft 2->2 scatterings, has been included. Making use of a non-relativistic effective theory framework and solving a plasma-modified Schrodinger equation, we address the effect of soft 2->2 scatterings as well as the thermal dissociation of bound states. We argue that the mass splitting between the Majorana and scalar field has in general both a lower and an upper bound, and that the dark matter mass scale can be pushed at least up to 5...6 TeV.

19 pages. v2: clarifications added, published version

References in corpus (13)

• The five-loop beta function of Yang-Mills theory with fermions
• Real and imaginary-time $Q\bar{Q}$ correlators in a thermal medium
• Bound-state formation for thermal relic dark matter and unitarity
• The five-loop Beta function for a general gauge group and anomalous dimensions beyond Feynman gauge
• Static quark-antiquark potential in the quark-gluon plasma from lattice QCD
• A resummed perturbative estimate for the quarkonium spectral function in hot QCD
• Signatures of Majorana dark matter with t-channel mediators
• The Extent of the Stop Coannihilation Strip
• Effects of QCD bound states on dark matter relic abundance
• On thermal corrections to near-threshold annihilation
• Re-derived overclosure bound for the inert doublet model
• SUSY-QCD corrections to stop annihilation into electroweak final states including Coulomb enhancement effects
• Heavy quark chemical equilibration rate as a transport coefficient

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