Effective Field Theory of Majorana Dark Matter

TL;DR

This paper develops a minimal effective field theory framework for Majorana dark matter, providing analytic annihilation results and analyzing experimental constraints in a model-independent manner, with applications to specific models like MSSM.

Contribution

It introduces a minimal effective field theory approach for Majorana dark matter, offering analytic annihilation formulas and a comprehensive analysis of experimental limits.

Findings

Derived analytic expressions for dark matter annihilation into standard model particles.

Presented model-independent constraints from recent direct detection experiments.

Applied the framework to singlet-doublet and MSSM dark matter models.

Abstract

We revisit thermal Majorana dark matter from the viewpoint of minimal effective field theory. In this framework, analytic results for dark matter annihilation into standard model particles are derived. The dark matter parameter space subject to the latest LUX, PandaX-II and Xenon-1T limits is presented in a model-independent way. Applications to singlet-doublet and MSSM are presented.