RT Journal Article
T1 Combined search in dwarf spheroidal galaxies for branon dark matter annihilation signatures with the MAGIC telescopes
A1 Abe, S.
A1 Abhir, J.
A1 Abhishek, A.
A1 Barrio Uña, Juan Abel
A1 Contreras González, José Luis
A1 Láinez, M.
A1 López Moya, Marcos
A1 Mas-Aguilar, A.
A1 Miener, Tjark
A1 Nieto Castaño, Daniel
AB Massive brane fluctuations, called branons, behave as weakly interacting massive particles, which is one of the most favored class of candidates to fulfill the role of the dark matter (DM), an elusive kind of matter beyond the Standard Model. We present a multi-target search in dwarf spheroidal galaxies for branon DM annihilation signatures with a total exposure of 354 hours with the ground-based gamma-ray telescope system MAGIC. This search led to the most constraining limits on branon DM in the sub-TeV and multi-TeV DM mass range. Our most stringent limit on the thermally-averaged annihilation cross-section (at 95% confidence level) corresponds to ⟨σv⟩ ≃ 1.9 × 10-24 cm3s-1 at a branon mass of ∼ 1.5 TeV.
SN 1475-7516
YR 2025
FD 2025-03-01
LK https://hdl.handle.net/20.500.14352/136480
UL https://hdl.handle.net/20.500.14352/136480
LA eng
NO Abe, S., et al. «Combined search in dwarf spheroidal galaxies for branon dark matter annihilation signatures with the MAGIC telescopes». Journal of Cosmology and Astroparticle Physics, vol. 2025, n.o 03, marzo de 2025, p. 020. DOI.org (Crossref), https://doi.org/10.1088/1475-7516/2025/03/020.
NO © 2025 The Author(s).Firman 200 autores.Centros de Excelencia Severo Ochoa y Unidades María de Maeztu (CEX2019-000920-S, CEX2019-000918-M, CEX2021-001131-S, CEX2020-001007-S)Ramón y Cajal (RYC2021-032552-I)Juan de la Cierva-Incorporación (IJC2019-040315-I)
NO Ministerio de Ciencia e Innovación (España)
NO Generalitat de Catalunya
NO European Commission
DS Docta Complutense
RD 15 jun 2026