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Title: 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}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.98.056025

Citation Metrics:
Cited by: 27 works
Citation information provided by
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Figures / Tables:

TABLE I TABLE I: $v$($m$) as a function of m, using results for the nucleon mass from Ref. [10], and assuming $y$ = 2. The 5th column gives the value of $v$($m$1) if the pair ($m$1,$m$$i$) is used to solve Eqs. (2.15) and (2.8). For $v$($m$1) in the 4th column we tookmore » the average of the values obtained from the pairs ($m$1,$m$2), ($m$1,$m$3), and ($m$1,$m$4). Except for the second column, we keep only two significant digits. Statistical errors have been suppressed.« less

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Works referenced in this record:

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journal, January 2018


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Works referencing / citing this record:

Into the conformal window: Multirepresentation gauge theories
journal, March 2020


ε -regime of dilaton chiral perturbation theory
journal, December 2019


Nonperturbative investigations of SU(3) gauge theory with eight dynamical flavors
journal, January 2019


Lattice gauge theory for physics beyond the Standard Model
journal, November 2019

  • Brower, Richard C.; Hasenfratz, Anna; Neil, Ethan T.
  • The European Physical Journal A, Vol. 55, Issue 11
  • DOI: 10.1140/epja/i2019-12901-5

Figures / Tables found in this record:

    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.