@Article{Belchior+Maluf2023, author="Belchior, F. M. and Maluf, R. V.", title="One-loop radiative corrections in bumblebee-Stueckelberg model", journal="Physics Letters B", year="2023", publisher="Elsevier", volume="844", pages="138107--9pp", optkeywords="Bumblebee field; Stueckelberg field; Radiative corrections; Two point function", abstract="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.", optnote="WOS:001122745000001", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=5850), last updated on Sun, 24 Dec 2023 18:07:42 +0000", issn="0370-2693", doi="10.1016/j.physletb.2023.138107", opturl="https://arxiv.org/abs/2307.14252", opturl="https://doi.org/10.1016/j.physletb.2023.138107", language="English" }