$O(N)$ model in Euclidean de Sitter space: beyond the leading infrared approximation

We consider an $O(N)$ scalar field model with quartic interaction in $d$-dimensional Euclidean de Sitter space. In order to avoid the problems of the standard perturbative calculations for light and massless fields, we generalize to the $O(N)$ theory a systematic method introduced previously for a s...

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Detalles Bibliográficos
Autores principales: López Nacir, Diana, Mazzitelli, Francisco D., Trombetta, Leonardo G.
Lenguaje:eng
Publicado: 2016
Materias:
Particle Physics - Theory
Acceso en línea:https://dx.doi.org/10.1007/JHEP09(2016)117
http://cds.cern.ch/record/2160524

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