Leptonic WIMP coannihilation and the current dark matter search strategy

A bstract We discuss the extent to which models of Weakly Interacting Massive Particle (WIMP) Dark Matter (DM) at and above the electroweak scale can be probed conclusively in future high energy and astroparticle physics experiments. We consider simplified models with bino-like dark matter and slept...

Full description

Saved in:

Bibliographic Details
Published in:	The journal of high energy physics 2018-10, Vol.2018 (10), p.1-31, Article 187
Main Authors:	Baker, Michael J., Thamm, Andrea
Format:	Article
Language:	eng
Subjects:	Beyond Standard Model Classical and Quantum Gravitation Cosmology of Theories beyond the SM Dark matter Elementary Particles Experiments High energy physics Nuclei (nuclear physics) Pair production Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Theoretical Physics Relativity Theory Sensitivity String Theory Weakly interacting massive particles
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	A bstract We discuss the extent to which models of Weakly Interacting Massive Particle (WIMP) Dark Matter (DM) at and above the electroweak scale can be probed conclusively in future high energy and astroparticle physics experiments. We consider simplified models with bino-like dark matter and slepton-like coannihilation partners, and find that perturbative models yield the observed relic abundance up to at least 10 TeV. We emphasise that coannihilation can either increase or decrease the dark matter relic abundance. We compute the sensitivity of direct detection experiments to DM-nucleus scattering, consider indirect detection bounds and estimate the sensitivity of future proton colliders to slepton pair production. We find that current and future experiments will be able to probe the Dirac DM models up to at least 10 TeV. However, current and future searches will not be sensitive to models of Majorana dark matter for masses above 2 or 4TeV, for one or ten coannihilation partners respectively, leaving around 70% of the parameter space unconstrained. This demonstrates the need for new experimental ideas to access models of coannihilating Majorana dark matter.
ISSN:	1029-8479 1029-8479