Gamma ray signals from cosmic ray scattering on axionlike particles

Not scheduled
20m
Auditorium (IBS Science and Culture Center)

Auditorium

IBS Science and Culture Center

Dark Matter Physics Parallel: Dark Matter 6

Speaker

Natalia Tapia Arellano (University of Utah)

Description

Dark matter (DM) may be comprised of axionlike particles (ALPs) with couplings to photons and the standard model fermions. We study photon signals arising from cosmic ray (CR) electron scattering on background ALPs. For a range of masses we find that these bounds can place competitive new constraints on the ALP-electron coupling. In addition to current Fermi constraints, we also consider future e-Astrogram bounds which will have greater sensitivity to ALP-CR induced gamma-rays.

Primary author

Natalia Tapia Arellano (University of Utah)

Co-authors

Ms Alejandro Rodriguez (Penn State U) Prof. Bhaskar Dutta (Texas A&M) Prof. Ian Shoemaker (Virginia Tech) Prof. James Dent (Sam Houston State U.) Prof. Jayden Newstead (Melbourne University) Dr Zahra Tabrizi (Northwestern)

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