Determination of the QCD coupling from the static energy and the free energy
Abstract
We present two determinations of the strong coupling αs. The first one is from the static energy at three-loop accuracy, and may be considered an update of earlier determinations by some of us. The new analysis includes new lattice data at smaller lattice spacings, and reaches distances as short as 0.0237fm. We present a comprehensive and detailed estimate of the error sources that contribute to the uncertainty of the final result, αs(MZ) = 0.11660$$^{+0.00110}_{–0.00056}$$. The second determination is based on lattice data for the singlet free energy at finite temperature up to distances as small as 0.0081fm, from which we obtain αs(MZ) = 0.11638$$^{+0.00095}_{–0.00087}$$.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- Contributing Org.:
- TUMQCD Collaboration
- OSTI Identifier:
- 1579786
- Alternate Identifier(s):
- OSTI ID: 1583114
- Report Number(s):
- BNL-213516-2020-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 114511
- Grant/Contract Number:
- SC0012704; FG02-00ER41132
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 100 Journal Issue: 11; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Bazavov, Alexei, Brambilla, Nora, Garcia i Tormo, Xavier, Petreczky, Péter, Soto, Joan, Vairo, Antonio, and Weber, Johannes Heinrich. Determination of the QCD coupling from the static energy and the free energy. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.100.114511.
Bazavov, Alexei, Brambilla, Nora, Garcia i Tormo, Xavier, Petreczky, Péter, Soto, Joan, Vairo, Antonio, & Weber, Johannes Heinrich. Determination of the QCD coupling from the static energy and the free energy. United States. doi:https://doi.org/10.1103/PhysRevD.100.114511
Bazavov, Alexei, Brambilla, Nora, Garcia i Tormo, Xavier, Petreczky, Péter, Soto, Joan, Vairo, Antonio, and Weber, Johannes Heinrich. Sun .
"Determination of the QCD coupling from the static energy and the free energy". United States. doi:https://doi.org/10.1103/PhysRevD.100.114511.
@article{osti_1579786,
title = {Determination of the QCD coupling from the static energy and the free energy},
author = {Bazavov, Alexei and Brambilla, Nora and Garcia i Tormo, Xavier and Petreczky, Péter and Soto, Joan and Vairo, Antonio and Weber, Johannes Heinrich},
abstractNote = {We present two determinations of the strong coupling αs. The first one is from the static energy at three-loop accuracy, and may be considered an update of earlier determinations by some of us. The new analysis includes new lattice data at smaller lattice spacings, and reaches distances as short as 0.0237fm. We present a comprehensive and detailed estimate of the error sources that contribute to the uncertainty of the final result, αs(MZ) = 0.11660$^{+0.00110}_{–0.00056}$. The second determination is based on lattice data for the singlet free energy at finite temperature up to distances as small as 0.0081fm, from which we obtain αs(MZ) = 0.11638$^{+0.00095}_{–0.00087}$.},
doi = {10.1103/PhysRevD.100.114511},
journal = {Physical Review D},
number = 11,
volume = 100,
place = {United States},
year = {2019},
month = {12}
}
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DOI: https://doi.org/10.1103/PhysRevD.100.114511
DOI: https://doi.org/10.1103/PhysRevD.100.114511
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Cited by: 3 works
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