Prospects for the detection of dark matter with long-lived mediators in the Sun using the Southern Wide-field Gamma-ray Observatory

Autor(es)

Andrade, Micael ; Fagiani, Juan ; Siqueira, Clarissa ; de Souza, Vitor ; Viana, Aion

• Tipo de documento: Artigo Científico
• Fonte: Journal of Cosmology and Astroparticle Physics; v. N/A, n. 1, p. 16-pg., 2025-01-01.

Resumo

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 so-called secluded models to calculate the capabilities of the Southern Wide-field Gamma-ray Observatory (SWGO) to detect gamma-ray signatures produced by dark matter particles concentrated in the Sun. We assume the dark matter particle annihilates into metastable mediators which decay into gamma gamma , e + e - , tau + tau - , and b <overline> b outside the Sun. We found that the SWGO will be able to probe a spin-dependent cross-section of about 10 - 46 cm2 for dark matter masses smaller than 5 TeV. This result shows an unprecedented sensitivity surpassing the current instruments by more than one order of magnitude. (AU)

• Processo FAPESP: 23/15494-0 - Otimização de buscas indiretas de matéria escura com observatórios terrestres de raios gama
• Beneficiário: Micael Jonathan Duarte Andrade
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 20/00320-9 - Busca por matéria escura à luz do CTA (Cherenkov Telescope Array)
• Beneficiário: Clarissa Martins Siqueira
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 21/01089-1 - Cherenkov Telescope Array: construção e primeiras descobertas
• Beneficiário: Luiz Vitor de Souza Filho
• Modalidade de apoio: Auxílio à Pesquisa - Projetos Especiais
• Processo FAPESP: 19/14893-3 - Fenômenos extremos no Centro Galáctico e busca indireta de matéria escura com raios gama
• Beneficiário: Aion da Escóssia Melo Viana
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores