Detection prospects of singlet fermionic dark matter

TL;DR

This paper analyzes the detection prospects of a minimal singlet fermionic dark matter model, exploring its parameter space and implications for direct and indirect detection experiments, including neutrino telescopes.

Contribution

The study provides an updated comprehensive analysis of the singlet fermionic dark matter model's parameter space and detection prospects, considering current and future experimental constraints.

Findings

Identifies parameter regions compatible with dark matter constraints.

Determines which regions are excluded or will be probed by upcoming experiments.

Calculates expected neutrino signals for indirect detection.

Abstract

A singlet fermion which interacts only with a new singlet scalar provides a viable and minimal scenario that can explain the dark matter. The singlet fermion is the dark matter particle whereas the new scalar mixes with the Higgs boson providing a link between the dark matter sector and the Standard Model. In this paper, we present an updated analysis of this model focused on its detection prospects. Both, the parity-conserving case and the most general case are considered. First, the full parameter space of the model is analyzed, and the regions compatible with the dark matter constraint are obtained and characterized. Then, the implications of current and future direct detection experiments are taken into account. Specifically, we determine the regions of the multidimensional parameter space that are currently excluded and those that are going to be probed by next generation experiments. Finally, indirect detection prospects are discussed and the expected signal at neutrino telescopes is calculated.