Massless scalar degrees of freedom in QCD and in the electroweak sector from the trace anomaly

Luigi Delle Rose; Mirko Serino

doi:10.1063/1.4763518

Massless scalar degrees of freedom in QCD and in the electroweak sector from the trace anomaly

Luigi Delle Rose, Mirko Serino

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

The interaction of QCD and electroweak sector with gravity is characterized by the generation of a massless pole in a specific form factor present in the 1-loop effective action. We briefly illustrate how to single out this behaviour in perturbation theory, by taking as an example the TJJ vertex, with T denoting the energy momentum tensor of the Standard Model. The breaking of scale invariance, due to the trace anomaly, is then related to the appearance of a local degree of freedom in the effective action, which is of dilaton type.

Original language	English
Title of host publication	QCD at WORK 2012 - International Workshop on Quantum Chromodynamics
Subtitle of host publication	Theory and Experiment
Pages	205-209
Number of pages	5
DOIs	https://doi.org/10.1063/1.4763518
State	Published - 1 Dec 2012
Externally published	Yes
Event	International Workshop on Quantum Chromodynamics: Theory and Experiment, QCD at WORK 2012 - Lecce, Italy Duration: 18 Jun 2012 → 21 Jun 2012

Publication series

Name	AIP Conference Proceedings
Volume	1492
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Conference

Conference	International Workshop on Quantum Chromodynamics: Theory and Experiment, QCD at WORK 2012
Country/Territory	Italy
City	Lecce
Period	18/06/12 → 21/06/12

Keywords

Trace anomaly
conformal symmetry
perturbation theory
symmetry breaking

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1063/1.4763518

Cite this

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title = "Massless scalar degrees of freedom in QCD and in the electroweak sector from the trace anomaly",

abstract = "The interaction of QCD and electroweak sector with gravity is characterized by the generation of a massless pole in a specific form factor present in the 1-loop effective action. We briefly illustrate how to single out this behaviour in perturbation theory, by taking as an example the TJJ vertex, with T denoting the energy momentum tensor of the Standard Model. The breaking of scale invariance, due to the trace anomaly, is then related to the appearance of a local degree of freedom in the effective action, which is of dilaton type.",

keywords = "Trace anomaly, conformal symmetry, perturbation theory, symmetry breaking",

author = "{Delle Rose}, Luigi and Mirko Serino",

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language = "English",

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series = "AIP Conference Proceedings",

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Delle Rose, L & Serino, M 2012, Massless scalar degrees of freedom in QCD and in the electroweak sector from the trace anomaly. in QCD at WORK 2012 - International Workshop on Quantum Chromodynamics: Theory and Experiment. AIP Conference Proceedings, vol. 1492, pp. 205-209, International Workshop on Quantum Chromodynamics: Theory and Experiment, QCD at WORK 2012, Lecce, Italy, 18/06/12. https://doi.org/10.1063/1.4763518

Massless scalar degrees of freedom in QCD and in the electroweak sector from the trace anomaly. / Delle Rose, Luigi; Serino, Mirko.
QCD at WORK 2012 - International Workshop on Quantum Chromodynamics: Theory and Experiment. 2012. p. 205-209 (AIP Conference Proceedings; Vol. 1492).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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N2 - The interaction of QCD and electroweak sector with gravity is characterized by the generation of a massless pole in a specific form factor present in the 1-loop effective action. We briefly illustrate how to single out this behaviour in perturbation theory, by taking as an example the TJJ vertex, with T denoting the energy momentum tensor of the Standard Model. The breaking of scale invariance, due to the trace anomaly, is then related to the appearance of a local degree of freedom in the effective action, which is of dilaton type.

AB - The interaction of QCD and electroweak sector with gravity is characterized by the generation of a massless pole in a specific form factor present in the 1-loop effective action. We briefly illustrate how to single out this behaviour in perturbation theory, by taking as an example the TJJ vertex, with T denoting the energy momentum tensor of the Standard Model. The breaking of scale invariance, due to the trace anomaly, is then related to the appearance of a local degree of freedom in the effective action, which is of dilaton type.

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Massless scalar degrees of freedom in QCD and in the electroweak sector from the trace anomaly

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

Access to Document

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