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Title: Light dilaton in walking gauge theories

Abstract

We analyze the existence of a dilaton in gauge theories with approximate infrared conformal symmetry. To the extent that these theories are governed in the infrared by an approximate fixed point (walking), the explicit breaking of the conformal symmetry at these scales is vanishingly small. If confinement and spontaneous chiral-symmetry breaking set in at some infrared scale, the resultant breaking of the approximate conformal symmetry can lead to the existence of a dilaton with mass parametrically small compared to the confinement scale, and potentially observable at the LHC.

Authors:
 [1];  [2]
  1. Department of Physics, Sloane Laboratory, Yale University, New Haven, Connecticut 06520 (United States)
  2. Theoretical Physics Department, Fermilab, Batavia, Illinois 60510 (United States)
Publication Date:
OSTI Identifier:
21421333
Resource Type:
Journal Article
Journal Name:
Physical Review. D, Particles Fields
Additional Journal Information:
Journal Volume: 82; Journal Issue: 7; Other Information: DOI: 10.1103/PhysRevD.82.071701; (c) 2010 American Institute of Physics; Journal ID: ISSN 0556-2821
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; APPROXIMATIONS; CERN LHC; CHIRAL SYMMETRY; CONFORMAL INVARIANCE; GAUGE INVARIANCE; MASS; SYMMETRY BREAKING; ACCELERATORS; CALCULATION METHODS; CYCLIC ACCELERATORS; INVARIANCE PRINCIPLES; STORAGE RINGS; SYMMETRY; SYNCHROTRONS

Citation Formats

Appelquist, Thomas, and Yang, Bai. Light dilaton in walking gauge theories. United States: N. p., 2010. Web. doi:10.1103/PHYSREVD.82.071701.
Appelquist, Thomas, & Yang, Bai. Light dilaton in walking gauge theories. United States. https://doi.org/10.1103/PHYSREVD.82.071701
Appelquist, Thomas, and Yang, Bai. 2010. "Light dilaton in walking gauge theories". United States. https://doi.org/10.1103/PHYSREVD.82.071701.
@article{osti_21421333,
title = {Light dilaton in walking gauge theories},
author = {Appelquist, Thomas and Yang, Bai},
abstractNote = {We analyze the existence of a dilaton in gauge theories with approximate infrared conformal symmetry. To the extent that these theories are governed in the infrared by an approximate fixed point (walking), the explicit breaking of the conformal symmetry at these scales is vanishingly small. If confinement and spontaneous chiral-symmetry breaking set in at some infrared scale, the resultant breaking of the approximate conformal symmetry can lead to the existence of a dilaton with mass parametrically small compared to the confinement scale, and potentially observable at the LHC.},
doi = {10.1103/PHYSREVD.82.071701},
url = {https://www.osti.gov/biblio/21421333}, journal = {Physical Review. D, Particles Fields},
issn = {0556-2821},
number = 7,
volume = 82,
place = {United States},
year = {Fri Oct 01 00:00:00 EDT 2010},
month = {Fri Oct 01 00:00:00 EDT 2010}
}