@Article{Delhom_etal2022,
author="Delhom, A.
and Nascimento, J. R.
and Olmo, G. J.
and Petrov, A. Y.
and Porfirio, P. J.",
title="Radiative corrections in metric-affine bumblebee model",
journal="Physics Letters B",
year="2022",
publisher="Elsevier",
volume="826",
pages="136932--9pp",
abstract="We consider the metric-affine formulation of bumblebee gravity, derive the field equations, and show that the connection can be written as Levi-Civita of a disformally related metric in which the bumblebee field determines the disformal part. As a consequence, the bumblebee field gets coupled to all the other matter fields present in the theory, potentially leading to nontrivial phenomenological effects. To explore this issue we compute the weak-field limit and study the resulting effective theory. In this scenario, we couple scalar and spinorial matter to the effective metric which, besides the zeroth-order Minkowskian contribution, also has the vector field contributions of the bumblebee, and show that it is renormalizable at one-loop level. From our analysis it also follows that the non-metricity of this theory is determined by the gradient of the bumblebee field, and that it can acquire a vacuum expectation value due to the contribution of the bumblebee field.",
optnote="WOS:000792884500005",
optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5229), last updated on Fri, 27 May 2022 06:56:04 +0000",
issn="0370-2693",
doi="10.1016/j.physletb.2022.136932",
opturl="https://arxiv.org/abs/2010.06391",
opturl="https://doi.org/10.1016/j.physletb.2022.136932",
language="English"
}