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Title: Determination of the strong coupling constant from the charmonium spectrum

Abstract

Lattice gauge theory techniques have recently achieved sufficient accuracy to permit a determination of the strong coupling constant from the 1{ital P}-1{ital S} splitting in the charmonium system, with all systematic errors estimated quantitatively. The present result is {alpha}{sub M{bar S}}(5 GeV)=0.174{plus minus}0.012, or equivalently, {Lambda}{sub M{bar S}}{sup (4)}=160{sub {minus}37}{sup +47} MeV ({ital M{bar S}} denotes the modified minimal subtraction scheme).

Authors:
; ; ;  [1]
  1. (Theoretical Physics Group, Fermi National Accelerator Laboratory, P.O. Box 500, Batavia, Illinois 60510 (United States))
Publication Date:
OSTI Identifier:
7261995
Resource Type:
Journal Article
Journal Name:
Physical Review Letters; (United States)
Additional Journal Information:
Journal Volume: 69:5; Journal ID: ISSN 0031-9007
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; MESON SPECTROSCOPY; CHARMONIUM; QUANTUM CHROMODYNAMICS; COUPLING CONSTANTS; LATTICE FIELD THEORY; MONTE CARLO METHOD; PARAMETRIC ANALYSIS; RENORMALIZATION; BOSONS; ELEMENTARY PARTICLES; FIELD THEORIES; HADRONS; MESONS; QUANTUM FIELD THEORY; QUARKONIUM; SPECTROSCOPY; 662110* - General Theory of Particles & Fields- Theory of Fields & Strings- (1992-); 662420 - Properties of Mesons & Meson Resonances- (1992-)

Citation Formats

El-Khadra, A.X., Hockney, G., Kronfeld, A.S., and Mackenzie, P.B.. Determination of the strong coupling constant from the charmonium spectrum. United States: N. p., 1992. Web. doi:10.1103/PhysRevLett.69.729.
El-Khadra, A.X., Hockney, G., Kronfeld, A.S., & Mackenzie, P.B.. Determination of the strong coupling constant from the charmonium spectrum. United States. doi:10.1103/PhysRevLett.69.729.
El-Khadra, A.X., Hockney, G., Kronfeld, A.S., and Mackenzie, P.B.. Mon . "Determination of the strong coupling constant from the charmonium spectrum". United States. doi:10.1103/PhysRevLett.69.729.
@article{osti_7261995,
title = {Determination of the strong coupling constant from the charmonium spectrum},
author = {El-Khadra, A.X. and Hockney, G. and Kronfeld, A.S. and Mackenzie, P.B.},
abstractNote = {Lattice gauge theory techniques have recently achieved sufficient accuracy to permit a determination of the strong coupling constant from the 1{ital P}-1{ital S} splitting in the charmonium system, with all systematic errors estimated quantitatively. The present result is {alpha}{sub M{bar S}}(5 GeV)=0.174{plus minus}0.012, or equivalently, {Lambda}{sub M{bar S}}{sup (4)}=160{sub {minus}37}{sup +47} MeV ({ital M{bar S}} denotes the modified minimal subtraction scheme).},
doi = {10.1103/PhysRevLett.69.729},
journal = {Physical Review Letters; (United States)},
issn = {0031-9007},
number = ,
volume = 69:5,
place = {United States},
year = {1992},
month = {8}
}