Singlet scalar dark matter in the non-commutative space-time: a viable hypothesis to explain the gamma-ray excess in the galactic center

TL;DR

This paper investigates whether non-commutative space-time can explain the gamma-ray excess in the galactic center through singlet scalar dark matter annihilation, showing it as a viable theoretical framework.

Contribution

It introduces a novel application of non-commutative space-time to dark matter phenomenology, specifically explaining gamma-ray excess via singlet scalar dark matter.

Findings

Non-commutative space-time can produce photon spectra consistent with observations.

The model successfully reproduces the gamma-ray excess data.

Non-commutative effects modify dark matter annihilation signatures.

Abstract

We explore the non-commutative space-time to revive the idea that gamma-ray excess in the galactic center can be the result of particle dark matter annihilation. In the non-commutative theory, the photon spectrum is produced by direct emission during this annihilation where a photon can be embed in the final state together with other direct products in new vertices. In the various configurations of dark matter phenomenology, we adopt the most common model known as singlet scalar. Calculating the relevant aspects of the model, we can obtain the photon flux in the galactic center. Comparing our numerical achievements with experimental data reveals that non-commutative space-time can be a reliable framework to explain the gamma-ray excess.