Indirect Searches for Dark Matter with AMS-02

TL;DR

AMS-02 is a space-based spectrometer capable of detecting multiple particles, enabling sensitive indirect searches for dark matter through gamma rays, positrons, and antiprotons, potentially revealing new physics and the nature of dark matter.

Contribution

This paper presents the sensitivity of AMS-02 to dark matter signals across various channels, highlighting its potential to explore new physics and the Majorana nature of dark matter.

Findings

AMS-02 can probe dark matter models via gamma rays, positrons, and antiprotons.

It has the potential to identify the Majorana nature of dark matter.

Sensitivity analysis shows AMS-02's capability to detect dark matter signals.

Abstract

AMS-02 is a multi-purpose spectrometer with superconducting magnet, and is designed for 3 years of data taking aboard the International Space Station. Its high performance regarding particle identification and energy measurement will allow performing indirect searches for dark matter (DM) in different channels simultaneously: gamma rays, positrons and antiprotons. AMS-02 sensitivity to those signals are presented and --provided the positron excess is due to DM signal-- it is shown that it allows to probe new physics models in detail. Its high sensitivity could even be a unique opportunity to reach the Majorana nature of the DM particle through final state polarization effects.