Large-mass regime of the dilaton-pion low-energy effective theory
Abstract
Numerical data of the SU(3) gauge theory with Nf = 8 fermions in the fundamental representation suggest the existence of a large-mass regime, where the fermion mass is not small relative to the confinement scale, but nevertheless the dilaton-pion low-energy theory is applicable thanks to the parametric proximity of the conformal window. In this regime, the leading hyperscaling relations are similar to those of a mass-deformed conformal theory, so that distinguishing infrared conformality from confinement requires the study of subleading effects. Assuming that the Nf = 8 theory confines, we estimate how light the fermion mass should be to enter the small-mass regime, where the pions become much lighter than the dilatonic scalar meson.
- Authors:
- Publication Date:
- Research Org.:
- San Francisco State Univ., CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1473997
- Alternate Identifier(s):
- OSTI ID: 1498905
- Grant/Contract Number:
- FG03-92ER40711
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 5; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Golterman, Maarten, and Shamir, Yigal. Large-mass regime of the dilaton-pion low-energy effective theory. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.98.056025.
Golterman, Maarten, & Shamir, Yigal. Large-mass regime of the dilaton-pion low-energy effective theory. United States. https://doi.org/10.1103/PhysRevD.98.056025
Golterman, Maarten, and Shamir, Yigal. Wed .
"Large-mass regime of the dilaton-pion low-energy effective theory". United States. https://doi.org/10.1103/PhysRevD.98.056025.
@article{osti_1473997,
title = {Large-mass regime of the dilaton-pion low-energy effective theory},
author = {Golterman, Maarten and Shamir, Yigal},
abstractNote = {Numerical data of the SU(3) gauge theory with Nf = 8 fermions in the fundamental representation suggest the existence of a large-mass regime, where the fermion mass is not small relative to the confinement scale, but nevertheless the dilaton-pion low-energy theory is applicable thanks to the parametric proximity of the conformal window. In this regime, the leading hyperscaling relations are similar to those of a mass-deformed conformal theory, so that distinguishing infrared conformality from confinement requires the study of subleading effects. Assuming that the Nf = 8 theory confines, we estimate how light the fermion mass should be to enter the small-mass regime, where the pions become much lighter than the dilatonic scalar meson.},
doi = {10.1103/PhysRevD.98.056025},
journal = {Physical Review D},
number = 5,
volume = 98,
place = {United States},
year = {Wed Sep 26 00:00:00 EDT 2018},
month = {Wed Sep 26 00:00:00 EDT 2018}
}
https://doi.org/10.1103/PhysRevD.98.056025
Web of Science
Figures / Tables:
Works referenced in this record:
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Works referencing / citing this record:
Into the conformal window: Multirepresentation gauge theories
journal, March 2020
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