Antideuterons from supersymmetric dark matter

TL;DR

This paper calculates the expected antideuteron flux from supersymmetric dark matter annihilation in the galaxy, using a comprehensive 2-D propagation model to assess the potential of antideuterons as an indirect detection method.

Contribution

It introduces a detailed 2-D propagation model for antideuterons from dark matter annihilation, aligned with cosmic ray data, to evaluate detection prospects.

Findings

Antideuteron flux estimates depend on propagation model parameters.

Potential for detecting dark matter via antideuterons is promising but uncertain.

Uncertainties in propagation affect future measurement interpretations.

Abstract

We calculate the antideuteron flux expected from dark matter annihilation in the galactic halo. The propagation is treated in a full 2-D propagation model consistent with the results obtained from the propagation of B/C and other galactic species. We discuss the potentials of this indirect dark matter detection means, with special emphasis on the possible sources of uncertainties affecting future measurements