Monoenergetic Neutrinos From Dark Matter Annihilation: Issues of Exposure

TL;DR

This paper explores the potential of detecting monoenergetic neutrinos from dark matter annihilation in the Sun, emphasizing the importance of exposure levels to maximize detection success amid background noise.

Contribution

It analyzes the effectiveness of monoenergetic neutrino searches from dark matter annihilation and discusses the exposure requirements for optimal detection.

Findings

Monoenergetic neutrino searches improve signal-to-background ratio.

Current experiments may be limited by signal detection capabilities.

Exposure levels are critical for fully exploiting this search strategy.

Abstract

We consider searches for dark matter annihilation in the Sun resulting in monoenergetic neutrinos, produced either directly or through the decay of stopped pions and kaons. We find that this strategy is very successful at increasing the signal-to-background ratio, but that current experiments may be signal limited. We discuss the exposures need to fully exploit this search strategy.