Conformal anomaly actions for dilaton interactions

Luigi Delle Rose, Carlo Marzo, Mirko Serino

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


We discuss, in conformally invariant field theories such as QCD with massless fermions, a possible link between the perturbative signature of the conformal anomaly, in the form of anomaly poles of the 1-particle irreducible effective action, and its descrip- tion in terms of Wess-Zumino actions with a dilaton. The two descriptions are expected to capture the UV and IR behaviour of the conformal anomaly, in terms of fundamental and effective degrees of freedom respectively, with the dilaton effective state appearing in a nonlinear realization. As in the chiral case, conformal anomalies seem to be related to the appearance of these effective interactions in the 1PI action in all the gauge-invariant sectors of the Standard Model. We show that, as a consequence of the underlying anomalous symmetry, the infinite hierarchy of recurrence relations involving self-interactions of the dilaton is entirely determined only by the first four of them. This relation can be generalized to any even space-time dimension.

Original languageEnglish
Title of host publicationEPJ Web of Conferences
EditorsClaudio Coriano, Pietro Colangelo, Donato Creanza, Eugenio Nappi, Fulvia De Fazio, Giuseppe E. Bruno, Gabriele Chiodini
PublisherEDP Sciences
ISBN (Electronic)9782759816859
StatePublished - 1 Jan 2014
Externally publishedYes
Event2014 7th International Workshop on Quantum Chromodynamics - Theory and Experiment, QCD@Work 2014 - Giovinazzo, Bari, Italy
Duration: 16 Jun 201419 Jun 2014

Publication series

NameEPJ Web of Conferences
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X


Conference2014 7th International Workshop on Quantum Chromodynamics - Theory and Experiment, QCD@Work 2014
CityGiovinazzo, Bari

ASJC Scopus subject areas

  • General Physics and Astronomy


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