Vacuum Polarization Effects in the Lorentz and PCT Violating Electrodynamics

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dc.creatorBonneau, G.
dc.creatorCosta, L. C.
dc.creatorTomazelli, J. L.
dc.date2005-10-05
dc.date.accessioned2026-07-07T11:43:52Z
dc.date.available2026-07-07T11:43:52Z
dc.descriptionIn this work we report new results concerning the question of dynamical mass generation in the Lorentz and PCT violating quantum electrodynamics. A one loop calculation for the vacuum polarization tensor is presented. The electron propagator, "dressed" by a Lorentz breaking extra term in the fermion Lagrangian density, is approximated by its first order: this scheme is shown to break gauge invariance. Then we rather consider a full calculation to second order in the Lorentz breaking parameter: we recover gauge invariance and use the Schwinger-Dyson equation to discuss the full photon propagator. This allows a discussion on a possible photon mass shift as well as measurable, observable physical consequences, such as the Lamb-shift.
dc.descriptionLatex file, 19 pages, no figures, includes PACS numbers
dc.identifierhttps://arxiv.org/abs/hep-th/0510045
dc.identifierhttp://arxiv.org/abs/hep-th/0510045
dc.identifierInt.J.Theor.Phys.47:1764-1775,2008
dc.identifierdoi:10.1007/s10773-007-9619-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201397
dc.subjectHigh Energy Physics - Theory
dc.subjectHigh Energy Physics - Phenomenology
dc.titleVacuum Polarization Effects in the Lorentz and PCT Violating Electrodynamics
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