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Author | Bazeia, D.; Losano, L.; Menezes, R.; Olmo, G.J.; Rubiera-Garcia, D. | ||||
Title | Thick brane in f(R) gravity with Palatini dynamics | Type | Journal Article | ||
Year | 2015 | Publication | European Physical Journal C | Abbreviated Journal | Eur. Phys. J. C |
Volume | 75 | Issue | Pages | 569 - 10pp | |
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Abstract | This work deals with modified gravity in five dimensional spacetime. We study a thick Palatini f(R) brane, that is, a braneworld scenario described by an anti-de Sitter warped geometry with a single extra dimension of infinite extent, sourced by real scalar field under the Palatini approach, where the metric and the connection are regarded as independent degrees of freedom. We consider a first-order framework which we use to provide exact solutions for the scalar field and warp factor. We also investigate a perturbative scenario such that the Palatini approach is implemented through a Lagrangian f(R)=R+ϵR^n, where the small parameter ϵ controls the deviation from the standard thick brane case. | ||||
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Notes | Approved | no | |||
Is ISI | yes | International Collaboration | yes | ||
Call Number | IFIC @ pastor @ | Serial | 2592 | ||
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