Higher order dilaton interactions in the nearly conformal limit of the Standard Model

Claudio Corianò, Luigi Delle Rose, Carlo Marzo, Mirko Serino

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

We investigate the Standard Model in the nearly conformal limit, in which conformal symmetry is broken only by the dilatation anomaly, through a hierarchy of anomalous Ward identities for the divergence of its dilatation current. In this approximation, the identities allow to extract the coupling of the dilaton to the trace anomaly, which we compute up to the quartic order in the conformal breaking scale. Our approach can be easily extended to discuss the anomaly contributions to the dilaton effective action to an arbitrarily high order. They allow to make a distinction between the Higgs and a dilaton at a phenomenological level.

Original languageEnglish
Pages (from-to)182-187
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume717
Issue number1-3
DOIs
StatePublished - 22 Oct 2012
Externally publishedYes

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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