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Paper   IPM / P / 17192
School of Physics
  Title:   Singlet scalar dark matter in the non-commutative space-time: a viable hypothesis to explain the gamma-ray excess in the galactic center
1.  Z. Rezaei
2.  S.P. Zakeri
  Status:   Preprint
  Year:  2023
  Supported by:  IPM
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 pursue the most common model known as singlet scalar. Calculating the relevant aspects of the model and determining the parameters phase space, we obtain the photon flux in the galactic center, a dense region sometimes with the presence of strong magnetic fields, which is an appropriate place to study theories involving Lorentz symmetry breaking. Comparing our numerical achievements with experimental data reveals that non-commutative space-time can be a reliable framework to explain the gamma-ray excess.

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