Electric corrections to it-it scattering lengths in the linear sigma model

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dc.contributor.authorCadiz, R.
dc.contributor.authorLoewe, M.
dc.contributor.authorZamora, R.
dc.date.accessioned2025-01-20T16:16:08Z
dc.date.available2025-01-20T16:16:08Z
dc.date.issued2024
dc.description.abstractIn this article, we analyze the role of an external electric field, in the weak field approximation, on pi - pi scattering lengths. The discussion is presented in the frame of the linear sigma model. To achieve this, we take into account all one -loop corrections in the s , t , and u channels associated with the insertion of a Schwinger propagator for charged pions, focusing on the region characterized by small values of the electric field. Furthermore, one of the novelties of our work is the explicit calculation of box diagrams, which were previously overlooked in discussions regarding magnetic corrections. It turns out that the electric field corrections have an opposite effect with respect to magnetic corrections calculated previously in the literature.
dc.description.funderANID/CONICYT FONDECYT Regular (Chile)
dc.fuente.origenWOS
dc.identifier.doi10.1103/PhysRevD.109.116004
dc.identifier.eissn2470-0029
dc.identifier.issn2470-0010
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.109.116004
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90532
dc.identifier.wosidWOS:001243878300006
dc.issue.numero11
dc.language.isoen
dc.revistaPhysical review d
dc.rightsacceso restringido
dc.titleElectric corrections to it-it scattering lengths in the linear sigma model
dc.typeartículo
dc.volumen109
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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