%0 Journal Article
%T One-loop radiative corrections in bumblebee-Stueckelberg model
%A Belchior, F. M.
%A Maluf, R. V.
%J Physics Letters B
%D 2023
%V 844
%I Elsevier
%@ 0370-2693
%G English
%F Belchior+Maluf2023
%O WOS:001122745000001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5850), last updated on Sun, 24 Dec 2023 18:07:42 +0000
%X This work aims to study the radiative corrections in a vector model with spontaneous Lorentz symmetry violation, known in the literature as the bumblebee model. We consider such a model with self -interaction quadratic smooth potential responsible for spontaneous Lorentz symmetry breaking. The spectrum of this model displays a transversal nonmassive mode, identified as Nambu-Goldstone, and a massive longitudinal mode. Besides the Lorentz symmetry, this model also exhibits gauge symmetry violation. To restore the gauge symmetry, we introduce the Stueckelberg field and calculate the two -point function by employing the principal-value (PV) prescription. The result is nontransversal, leading to a massive excited mode.
%K Bumblebee field
%K Stueckelberg field
%K Radiative corrections
%K Two point function
%R 10.1016/j.physletb.2023.138107
%U https://arxiv.org/abs/2307.14252
%U https://doi.org/10.1016/j.physletb.2023.138107
%P 138107-9pp