Cosmological eras with the neutrino non-relativistic transition in RTB gravity.

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSilva, Jonas Pinheiro da-
Autor(es): dc.creatorVelten, Hermano Endlich Schneider-
Data de aceite: dc.date.accessioned2025-08-21T15:14:48Z-
Data de disponibilização: dc.date.available2025-08-21T15:14:48Z-
Data de envio: dc.date.issued2025-08-08-
Data de envio: dc.date.issued2024-
Fonte completa do material: dc.identifierhttps://www.repositorio.ufop.br/handle/123456789/20795-
Fonte completa do material: dc.identifierhttps://arxiv.org/abs/2409.14443-
Fonte completa do material: dc.identifierhttps://doi.org/10.48550/arXiv.2409.14443-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1007770-
Descrição: dc.descriptionTheories based on the Ricci and the trace of the energy-momentum tensor, or the short name Ricci-trace-based (RTB) theories, represent a gravitational approach based on the Ricci scalar R, and the trace of the energy-momentum tensor gµνTµν = T. This theory fits into gravitational models of the type f(R,T) = R + f(T), where f(T) is an arbitrary function of T. In this study, we explore a cosmological scenario within the context of RTB models, investigating in detail the cosmological consequences of the coupling between matter and geometry. In order to address this issue, we propose a toy model in which the non-relativistic cosmological neutrino transition plays a role in the cosmic evolution since the effective total energy-momentum tensor trace is affected in this process. We raise questions about the coupling of neutrinos with geometry during this transition, providing a detailed analysis of how RTB gravity deals with this phenomenon and the impact of neutrinos on cosmological dynamics. In summary, we show that the coupling of cosmological neutrinos with T dependent cosmologies is severely challenged.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Direitos: dc.rightsrestrito-
Palavras-chave: dc.subjectDark energy-
Palavras-chave: dc.subjectModified gravity-
Palavras-chave: dc.subjectCosmology-
Título: dc.titleCosmological eras with the neutrino non-relativistic transition in RTB gravity.-
Aparece nas coleções:Repositório Institucional - UFOP

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