# Neutrinos from cosmic ray interactions in the Sun

## TL;DR

This paper calculates the flux of neutrinos produced by cosmic ray interactions in the Sun, assessing their detectability and background relevance for dark matter searches, using a new Monte Carlo simulation tool.

## Contribution

It introduces a novel Monte Carlo simulation package for modeling solar neutrinos from cosmic ray interactions, aiding experimental detection efforts.

## Key findings

- Neutrino flux from the Sun's cosmic ray interactions is quantified.
- The background neutrino flux is compared with atmospheric and dark matter signals.
- A publicly available simulation tool is provided for experimental use.

## Abstract

Cosmic rays hitting the solar atmosphere generate neutrinos that interact and oscillate in the Sun and oscillate on the way to Earth. These neutrinos could potentially be detected with neutrino telescopes and will be a background for searches for neutrinos from dark matter annihilation in the Sun. We calculate the flux of neutrinos from these cosmic ray interactions in the Sun and also investigate the interactions near a detector on Earth that give rise to muons. We compare this background with both regular Earth-atmospheric neutrinos and signals from dark matter annihilation in the Sun. Our calculation is performed with an event-based Monte Carlo approach that should be suitable as a simulation tool for experimental collaborations. Our program package is released publicly along with this paper.