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https://locus.ufv.br//handle/123456789/21720
Tipo: | Artigo |
Título: | No radiative generation of Chern-Simons-like term in Lorentz-violating QED: dealing with IR divergences |
Autor(es): | Del Cima, O. M. Franco, D. H. T. Piguet, O. |
Abstract: | The issue intensively claimed in the literature on the generation of a CPT-odd and Lorentz violating Chern-Simons-like term by radiative corrections owing to a CPT violating interaction — the axial coupling of fermions with a constant vector field bμ — is mistaken. The presence of massless gauge field triggers IR divergences that might show up from the UV subtractions, therefore, so as to deal with the (actual physical) IR divergences, the Lowenstein-Zimmermann subtraction scheme, in the framework of BPHZL renormalization method, has to be adopted. The proof on the non generation of such a Chern-Simons-like term is done, independent of any kind of regularization scheme, at all orders in perturbation theory. |
Palavras-chave: | Anomalies in Field and String Theories BRST Quantization Renormalization Regularization and Renormalons Space-Time Symmetries |
Editor: | Journal of High Energy Physics |
Tipo de Acesso: | Open Access |
URI: | https://doi.org/10.1007/JHEP11(2017)011 http://www.locus.ufv.br/handle/123456789/21720 |
Data do documento: | 6-Nov-2017 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Arquivo | Descrição | Tamanho | Formato | |
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artigo.pdf | Texto completo | 440,73 kB | Adobe PDF | Visualizar/Abrir |
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