One-loop calculations in CPT-even Lorentz-breaking scalar QED

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Título:	One-loop calculations in CPT-even Lorentz-breaking scalar QED
Palavras-chave:	Perturbation theory Gauge symmetry Lorentz indices
Data do documento:	29-Jun-2022
Editor:	World Scientific Publishing
Citação:	SCARPELLI, A. P. B. et al. One-loop calculations in CPT-even Lorentz-breaking scalar QED. Modern Physics Letters A, [S.l.], v. 37, n. 16, p. 1-12, 2022. DOI: 10.1142/S0217732322501000.
Resumo:	In this paper, we study a CPT-even Lorentz-breaking extension of the scalar QED. For this theory, we calculate the one-loop lower-order contributions in the Lorentz-violating parameters to the two-point functions of scalar and gauge fields. We found that the two background tensors, coming from the two sectors (scalar and gauge) are mixed in the one-loop corrections both in finite and divergent parts. This shows that these two Lorentz-breaking terms cannot be studied in an isolated form. Besides, the results in the gauge sector are confirmed to be transversal.
URI:	https://www.worldscientific.com/doi/10.1142/S0217732322501000 http://repositorio.ufla.br/jspui/handle/1/55427
Aparece nas coleções:	DEX - Artigos publicados em periódicos

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