Structural aspects of Lorentz-violating quantum field theory

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dc.contributor.authorCambiaso, M.
dc.contributor.authorLehnert, R.
dc.contributor.authorPotting, R.
dc.date.accessioned2018-09-25T14:48:50Z
dc.date.available2018-09-25T14:48:50Z
dc.date.issued2018-02
dc.descriptionIndexación: Scopus.es_ES
dc.descriptionInternational Workshop on CPT and Lorentz Symmetry in Field Theory 2017; Universidade do AlgarveFaro; Portugal; 6 July 2017 through 7 July 2017; Code 135301
dc.description.abstractIn the last couple of decades the Standard Model Extension has emerged as a fruitful framework to analyze the empirical and theoretical extent of the validity of cornerstones of modern particle physics, namely, of Special Relativity and of the discrete symmetries C, P and T (or some combinations of these). The Standard Model Extension allows to contrast high-precision experimental tests with posited alterations representing minute Lorentz and/or CPT violations. To date no violation of these symmetry principles has been observed in experiments, mostly prompted by the Standard-Model Extension. From the latter, bounds on the extent of departures from Lorentz and CPT symmetries can be obtained with ever increasing accuracy. These analyses have been mostly focused on tree-level processes. In this presentation I would like to comment on structural aspects of perturbative Lorentz violating quantum field theory. I will show that some insight coming from radiative corrections demands a careful reassessment of perturbation theory. Specifically I will argue that both the standard renormalization procedure as well as the Lehmann-Symanzik-Zimmermann reduction formalism need to be adapted given that the asymptotic single-particle states can receive quantum corrections from Lorentz-violating operators that are not present in the original Lagrangian. © Published under licence by IOP Publishing Ltd.es_ES
dc.description.urihttp://iopscience.iop.org/article/10.1088/1742-6596/952/1/012005/meta
dc.identifier.citationJournal of Physics: Conference Series, 952(1), art. no. 012005.es_ES
dc.identifier.issn1742-6588
dc.identifier.otherDOI: 10.1088/1742-6596/952/1/012005
dc.identifier.urihttp://repositorio.unab.cl/xmlui/handle/ria/7057
dc.language.isoenes_ES
dc.publisherInstitute of Physics Publishinges_ES
dc.subjectHigh energy physicses_ES
dc.subjectPerturbation techniqueses_ES
dc.subjectRelativityes_ES
dc.titleStructural aspects of Lorentz-violating quantum field theoryes_ES
dc.typeArtículoes_ES
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