The running coupling of 8 flavors and 3 colors
Abstract
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.
- Authors:
-
- Univ. of Wuppertal (Germany). Dept. of Physics; Julich Supercomputing Center, Julich (Germany); Eotvos Univ., Budapest (Hungary). Inst. for Theoretical Physics
- Univ. of the Pacific, Stockton, CA (United States)
- Univ. of California, San Diego, CA (United States)
- Eotvos Univ., Budapest (Hungary). Inst. for Theoretical Physics; MTA-ELTE Lendulet Lattice Gauge Theory Research Group, Budapest (Hungary)
- 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. https://doi.org/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. https://doi.org/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 = {Thu Jun 04 00:00:00 EDT 2015},
month = {Thu Jun 04 00:00:00 EDT 2015}
}
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