Combined search in dwarf spheroidal galaxies for branon dark matter annihilation signatures with the MAGIC telescopes

IF 5.9 2区物理与天体物理 Q1 ASTRONOMY & ASTROPHYSICS Journal of Cosmology and Astroparticle Physics Pub Date : 2025-03-12 DOI:10.1088/1475-7516/2025/03/020

S. Abe, J. Abhir, A. Abhishek, V.A. Acciari, A. Aguasca-Cabot, I. Agudo, T. Aniello, S. Ansoldi, A. Arbet Engels, C. Arcaro, K. Asano, D. Baack, A. Babić, U. Barres de Almeida, J.A. Barrio, I. Batković, A. Bautista, J. Baxter, J. Becerra González, W. Bednarek, E. Bernardini, J. Bernete, A. Berti, J. Besenrieder, C. Bigongiari, A. Biland, O. Blanch, G. Bonnoli, Ž. Bošnjak, E. Bronzini, I. Burelli, A. Campoy-Ordaz, R. Carosi, M. Carretero-Castrillo, A.J. Castro-Tirado, D. Cerasole, G. Ceribella, Y. Chai, A. Cifuentes, E. Colombo, J.L. Contreras, J. Cortina, S. Covino, G. D'Amico, V. D'Elia, P. Da Vela, F. Dazzi, A. De Angelis, B. De Lotto, R. de Menezes, J. Delgado, C. Delgado Mendez, F. Di Pierro, R. Di Tria, L. Di Venere, D. Dominis Prester, A. Donini, D. Dorner, M. Doro, D. Elsaesser, J. Escudero, L. Fariña, A. Fattorini, L. Foffano, L. Font, S. Fröse, S. Fukami, Y. Fukazawa, R.J. García López, M. Garczarczyk, S. Gasparyan, M. Gaug, J.G. Giesbrecht Paiva, N. Giglietto, F. Gi..

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Abstract

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.

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用MAGIC望远镜联合搜索矮球状星系中的暗物质湮灭特征

大质量的膜波动，被称为branons，表现为弱相互作用的大质量粒子，这是最受欢迎的一类候选者之一，以履行暗物质（DM）的角色，一种超出标准模型的难以捉摸的物质。我们利用地面伽玛射线望远镜系统MAGIC在矮星球状星系中进行了多目标搜索，以寻找总曝光时间为354小时的γ - DM湮灭特征。这一搜索导致了在亚tev和多tev DM质量范围内的最限制性限制。我们对热平均湮灭截面的最严格限制（在95%置信水平）对应于⟨σv⟩≃1.9 × 10-24 cm3s-1，在质子质量为~ 1.5 TeV时。

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来源期刊

Journal of Cosmology and Astroparticle Physics 地学天文-天文与天体物理

CiteScore

10.20

自引率

23.40%

发文量

632

审稿时长

1 months

期刊介绍： Journal of Cosmology and Astroparticle Physics (JCAP) encompasses theoretical, observational and experimental areas as well as computation and simulation. The journal covers the latest developments in the theory of all fundamental interactions and their cosmological implications (e.g. M-theory and cosmology, brane cosmology). JCAP''s coverage also includes topics such as formation, dynamics and clustering of galaxies, pre-galactic star formation, x-ray astronomy, radio astronomy, gravitational lensing, active galactic nuclei, intergalactic and interstellar matter.