TY  - JOUR
AU  - Belchior, F. M.
AU  - Maluf, R. V.
PY  - 2023
DA  - 2023//
TI  - One-loop radiative corrections in bumblebee-Stueckelberg model
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 138107
EP  - 9pp
VL  - 844
PB  - Elsevier
KW  - Bumblebee field
KW  - Stueckelberg field
KW  - Radiative corrections
KW  - Two point function
AB  - 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.
SN  - 0370-2693
UR  - https://arxiv.org/abs/2307.14252
UR  - https://doi.org/10.1016/j.physletb.2023.138107
DO  - 10.1016/j.physletb.2023.138107
LA  - English
N1  - WOS:001122745000001
ID  - Belchior+Maluf2023
ER  -