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

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