7 papers
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, GeV) gamma rays resulting from the scattering of high-energy cosmic-ray protons off axion-like particles (ALPs) populati…
Observational Constraints on WIMP Mini-Spikes Around Stellar-Mass Primordial Black Holes with 17 Years of Fermi-LAT Data
Ana Vitória de Almeida Martinheira Braga, Murillo Gregorio Grefener da Silva, Aion Viana
The quest to identify the true nature of dark matter remains one of the most pressing challenges in modern physics. We present a novel approach to probe the Weakly Interacting Mass…
Constraints on the Inert Doublet Model of dark matter with very high-energy gamma-ray observatories
Lucca Radicce Justino, Clarissa Siqueira, Aion Viana
We investigate constraints on the Inert Doublet Model (IDM) that features a scalar dark matter candidate, using data from recent and future gamma-ray observatories. The relevance o…
Probing Dark Photon Dark Matter with CTAO
Júlia G. Mamprim, Júlia G. Mamprim, Aion Viana +1
The dark photon is a hypothetical gauge boson arising in extensions of the Standard Model, and has emerged as a compelling dark matter candidate. As dark photon dark matter (DPDM),…
Probing axion-like particles through the gamma-ray production from cosmic-ray scattering in the Milky Way dark matter halo
Victor P. Goncalves, Emmanuel Moulin, Igor Reis +1
Axion-like particles (ALP) are promising candidates to comprise all the dark matter in the universe. We investigate the ALP couplings to photons and electrons via astrophysical mea…
Prospects for the detection of Dark Matter with Long-lived Mediators in the Sun using the Southern Wide-field Gamma-ray Observatory
Micael Andrade, Juan Fagiani, Clarissa Siqueira +2
The operation of the next generation of gamma-ray observatories will lead to a great advance in dark matter searches. In this paper, we use the hidden sectors hypothesis within the…