Neutralino Dark Matter in Light Higgs Boson Scenario

TL;DR

This paper explores a minimal supersymmetric model where the lightest Higgs boson is lighter than 114.4 GeV, showing it aligns with collider data, dark matter relic abundance, and can be tested by upcoming experiments.

Contribution

It demonstrates the viability of a light Higgs scenario in the minimal supersymmetric model consistent with current data and predicts observable signals in future experiments.

Findings

Scenario consistent with collider experiments

Relic abundance of dark matter matches observations

Predicts large scattering cross section detectable in direct detection experiments

Abstract

Phenomenology of neutralino dark matter in the minimal supersymmetric model is discussed for a scenario where the lightest Higgs boson mass is lighter than 114.4 GeV. We show that the scenario is consistent not only with many collider experiments but also with the observed relic abundance of dark matter. The allowed region may be probed by experiments of Bs to mu^+ mu^- in near future. The scenario predicts a large scattering cross section between the dark matter and ordinary matter and thus it may be tested in present direct detection experiments of dark matter.