skip to main content
DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The running coupling of 8 flavors and 3 colors

Abstract

We compute the renormalized running coupling of SU(3) gauge theory coupled to N f = 8 flavors of massless fundamental Dirac fermions. The recently proposed finite volume gradient flow scheme is used. The calculations are performed at several lattice spacings allowing for a controlled continuum extrapolation. The results for the discrete β-function show that it is monotonic without any sign of a fixed point in the range of couplings we cover. Finally, as a cross check the continuum results are compared with the well-known perturbative continuum β-function for small values of the renormalized coupling and perfect agreement is found.

Authors:
 [1];  [2];  [3];  [4];  [4];  [5]
  1. Univ. of Wuppertal (Germany). Dept. of Physics; Julich Supercomputing Center, Julich (Germany); Eotvos Univ., Budapest (Hungary). Inst. for Theoretical Physics
  2. Univ. of the Pacific, Stockton, CA (United States)
  3. Univ. of California, San Diego, CA (United States)
  4. Eotvos Univ., Budapest (Hungary). Inst. for Theoretical Physics; MTA-ELTE Lendulet Lattice Gauge Theory Research Group, Budapest (Hungary)
  5. Univ. of Wuppertal (Germany). Dept. of Physics
Publication Date:
Research Org.:
Univ. of California, San Diego, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1454831
Grant/Contract Number:  
SC0009919
Resource Type:
Accepted Manuscript
Journal Name:
Journal of High Energy Physics (Online)
Additional Journal Information:
Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2015; Journal Issue: 6; Journal ID: ISSN 1029-8479
Publisher:
Springer Berlin
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Lattice Gauge Field Theories; Lattice Quantum Field Theory

Citation Formats

Fodor, Zoltan, Holland, Kieran, Kuti, Julius, Mondal, Santanu, Nogradi, Daniel, and Wong, Chik Him. The running coupling of 8 flavors and 3 colors. United States: N. p., 2015. Web. doi:10.1007/JHEP06(2015)019.
Fodor, Zoltan, Holland, Kieran, Kuti, Julius, Mondal, Santanu, Nogradi, Daniel, & Wong, Chik Him. The running coupling of 8 flavors and 3 colors. United States. doi:10.1007/JHEP06(2015)019.
Fodor, Zoltan, Holland, Kieran, Kuti, Julius, Mondal, Santanu, Nogradi, Daniel, and Wong, Chik Him. Thu . "The running coupling of 8 flavors and 3 colors". United States. doi:10.1007/JHEP06(2015)019. https://www.osti.gov/servlets/purl/1454831.
@article{osti_1454831,
title = {The running coupling of 8 flavors and 3 colors},
author = {Fodor, Zoltan and Holland, Kieran and Kuti, Julius and Mondal, Santanu and Nogradi, Daniel and Wong, Chik Him},
abstractNote = {We compute the renormalized running coupling of SU(3) gauge theory coupled to Nf = 8 flavors of massless fundamental Dirac fermions. The recently proposed finite volume gradient flow scheme is used. The calculations are performed at several lattice spacings allowing for a controlled continuum extrapolation. The results for the discrete β-function show that it is monotonic without any sign of a fixed point in the range of couplings we cover. Finally, as a cross check the continuum results are compared with the well-known perturbative continuum β-function for small values of the renormalized coupling and perfect agreement is found.},
doi = {10.1007/JHEP06(2015)019},
journal = {Journal of High Energy Physics (Online)},
number = 6,
volume = 2015,
place = {United States},
year = {2015},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

Save / Share: