Light Dark Fermion in Two Natural Scenarios
Ernest Ma
TL;DR
This paper explores the possibility of light fermionic dark matter arising from two natural scenarios involving a softly broken discrete symmetry, produced via Higgs decay through the freeze-in mechanism.
Contribution
It introduces two natural models where light dark fermions emerge from a softly broken discrete symmetry and are produced via Higgs decay through the freeze-in process.
Findings
Dark fermion production via Higgs decay is viable in the proposed scenarios.
The models naturally suppress dark matter interactions, consistent with observational constraints.
The freeze-in mechanism effectively generates the observed dark matter abundance.
Abstract
Dark matter is postulated as a light fermion in two natural scenarios as the outcome of a softly broken discrete symmetry. It is produced from the naturally suppressed decay of the standard-model Higgs boson through the freeze-in mechanism.
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Taxonomy
TopicsAtomic and Subatomic Physics Research · Dark Matter and Cosmic Phenomena · Cosmology and Gravitation Theories