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2014-10-31

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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/131203

Determination of αs from the QCD static energy: An update

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https://doi.org/10.1103/PhysRevD.90.074038

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.

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Cromodinàmica quàntica, Física de partícules, Gran Col·lisionador d'Hadrons

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Quantum chromodynamics, Particle physics, Large Hadron Collider (France and Switzerland)

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Articles publicats en revistes (Física Quàntica i Astrofísica)
Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB))

Citation

BAZAVOV, Alexei, et al. Determination of αs from the QCD static energy: An update. Physical Review D. 2014. Vol. 90, num. 7, pags. 074038. ISSN 1550-7998. [consulted: 14 of June of 2026]. Available at: https://hdl.handle.net/2445/131203

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