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Title: All one-loop scalar vertices in the effective potential approach
Author: Camargo-Molina, José Eliel
Morais, António P.
Pasechnik, Roman
Sampaio, Marco O. P.
Wessén, Jonas
Keywords: Beyond standard model
Higgs physics
Spontaneous symmetry breaking
Issue Date: Aug-2016
Publisher: Springer
Abstract: Using the one-loop Coleman-Weinberg effective potential, we derive a general analytic expression for all the derivatives of the effective potential with respect to any number of classical scalar fields. The result is valid for a renormalisable theory in four dimensions with any number of scalars, fermions or gauge bosons. This result corresponds to the zero-external momentum contribution to a general one-loop diagram with N scalar external legs. We illustrate the use of the general result in two simple scalar singlet extensions of the Standard Model, to obtain the dominant contributions to the triple couplings of light scalar particles under the zero external momentum approximation.
Peer review: yes
DOI: 10.1007/JHEP08(2016)073
ISSN: 1029-8479
Appears in Collections:DFis - Artigos

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