Blazar boosted Dark Matter -- direct detection constraints on $\sigma_{e\chi}$ : Role of energy dependent cross sections - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Cosmology and Astroparticle Physics Année : 2023

Blazar boosted Dark Matter -- direct detection constraints on $\sigma_{e\chi}$ : Role of energy dependent cross sections

Résumé

Elastic collisions with relativistic electrons from the blazar's jet can accelerate dark matter (DM) particles in the DM spike surrounding the supermassive black hole at its center. This can allow one to set stringent limits on the DM-electron scattering cross section ($\bar{\sigma}_{e\chi}$) for DM masses less than 100 MeV. We consider DM particles boosted by energetic electrons in the jets of the blazars TXS 0506+056 and BL Lacertae. Both vector and scalar mediators for the scattering of electron and electrophilic fermionic DM are studied. We highlight that the ensuing energy dependency of the S-matrix for the corresponding Lorentz structure of the vertex significantly modifies the constraints. We find that the revised exclusion limits are orders of magnitude stronger than the equivalent results for the simple constant cross section assumption. Our limits are also assessed for the less cuspy spike.

Dates et versions

hal-03946557 , version 1 (19-01-2023)

Identifiants

Citer

Supritha Bhowmick, Diptimoy Ghosh, Divya Sachdeva. Blazar boosted Dark Matter -- direct detection constraints on $\sigma_{e\chi}$ : Role of energy dependent cross sections. Journal of Cosmology and Astroparticle Physics, 2023, 2023 (07), pp.039. ⟨10.1088/1475-7516/2023/07/039⟩. ⟨hal-03946557⟩
10 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More