Gamma-ray production in the cosmic-ray -- dark matter scattering as a probe of the axion-like particle -- proton interaction

Victor P. Goncalves, Emmanuel Moulin, Igor Reis +1

The production of very-high-energy (VHE, $E_{\gamma }\gtrsim 100$ GeV) gamma rays resulting from the scattering of high-energy cosmic-ray protons off axion-like particles (ALPs) populatin…