# Rare Low-Energy Event Searches with the Majorana Demonstrator

## TL;DR

The Majorana Demonstrator searches for neutrinoless double-beta decay and explores additional rare low-energy events like dark matter and axions, demonstrating low-background detection at underground facilities.

## Contribution

This paper presents the results and ongoing efforts of rare-event searches using the Majorana Demonstrator, highlighting its low-background and low-threshold capabilities for multiple physics investigations.

## Key findings

- Successful detection of low-energy rare events
- Demonstrated low-background and low-threshold performance
- Projected sensitivity for future rare-event searches

## Abstract

The Majorana Demonstrator is currently searching for neutrinoless double-beta decay in $^{76}$Ge and will demonstrate the feasibility to deploy a tonne-scale experiment in a phased and modular fashion. It consists of two modular arrays of natural and $^{76}$Ge-enriched germanium detectors totaling 44.1 kg, of which 29.7 kg is enriched, located at the 4850' level of the Sanford Underground Research Facility in Lead, South Dakota, USA. The low-backgrounds and low trigger thresholds ($<$1 keV) achieved by the Demonstrator allow for additional rare-event searches at low-energies, e.g. searches for WIMPs, bosonic dark matter, and solar axions. In this work, we will present results and ongoing efforts related to these rare-event searches and discuss the future reach of Majorana.