Please use this identifier to cite or link to this item:
http://hdl.handle.net/2445/131203
Title: | Determination of αs from the QCD static energy: An update |
Author: | Bazavov, Alexei Brambilla, Nora Garcia-Tormo, Xavier Petreczky, Péter Soto Riera, Joan Vairo, Antonio |
Keywords: | Cromodinàmica quàntica Física de partícules Gran Col·lisionador d'Hadrons Quantum chromodynamics Particle physics Large Hadron Collider (France and Switzerland) |
Issue Date: | 31-Oct-2014 |
Publisher: | American Physical Society |
Abstract: | We present an update of our determination of the strong coupling α s from the quantum chromodynamics static energy. This updated analysis includes new lattice data, at smaller lattice spacings and reaching shorter distances, the use of better suited perturbative expressions to compare with data in a wider distance range, and a comprehensive and detailed estimate of the error sources that contribute to the uncertainty of the final result. Our updated value for α s at the Z -mass scale, M Z , is α s ( M Z ) = 0.116 6 + 0.0012 − 0.0008 , which supersedes our previous result. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.90.074038 |
It is part of: | Physical Review D, 2014, vol. 90, num. 7, p. 074038 |
URI: | http://hdl.handle.net/2445/131203 |
Related resource: | https://doi.org/10.1103/PhysRevD.90.074038 |
ISSN: | 1550-7998 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
646004.pdf | 1.06 MB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.