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Masses of light quarks in quantum chromodynamics

Journal Article:

Abstract

We try to determine light quark masses by considering sum rules for the vacuum expectation value of the time-ordered correlation function of two divergences of the axial vector current. The evaluation is carried out at momenta high enough for the non-perturbative contributions to be negligible. We find that the average mass of the up and down quark at a momentum of 1 GeV lies between 3.3 and 7.9 MeV while that for the strange quark lies between 84 and 212 MeV. The ranges of values reflect predominantly the uncertainty in the absorptive part in the low energy region (approx. <= 1.7 GeV).
Authors:
Hubschmid, W; Mallik, S [1] 
  1. Bern Univ. (Switzerland). Inst. fuer Theoretische Physik
Publication Date:
Dec 28, 1981
Product Type:
Journal Article
Reference Number:
AIX-13-673783; EDB-82-111962
Resource Relation:
Journal Name: Nucl. Phys. B; (Netherlands); Journal Volume: 193:2
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; QUANTUM CHROMODYNAMICS; REST MASS; QUARKS; AXIAL-VECTOR CURRENTS; CORRELATION FUNCTIONS; EXPECTATION VALUE; SUM RULES; VACUUM STATES; ALGEBRAIC CURRENTS; CURRENTS; ELEMENTARY PARTICLES; EQUATIONS; FIELD THEORIES; FUNCTIONS; MASS; POSTULATED PARTICLES; QUANTUM FIELD THEORY; 645204* - High Energy Physics- Particle Interactions & Properties-Theoretical- Strong Interactions & Properties; 645400 - High Energy Physics- Field Theory
OSTI ID:
5436911
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NUPBB
Submitting Site:
HEDB
Size:
Pages: 368-380
Announcement Date:

Journal Article:

Citation Formats

Hubschmid, W, and Mallik, S. Masses of light quarks in quantum chromodynamics. Netherlands: N. p., 1981. Web.
Hubschmid, W, & Mallik, S. Masses of light quarks in quantum chromodynamics. Netherlands.
Hubschmid, W, and Mallik, S. 1981. "Masses of light quarks in quantum chromodynamics." Netherlands.
@misc{etde_5436911,
title = {Masses of light quarks in quantum chromodynamics}
author = {Hubschmid, W, and Mallik, S}
abstractNote = {We try to determine light quark masses by considering sum rules for the vacuum expectation value of the time-ordered correlation function of two divergences of the axial vector current. The evaluation is carried out at momenta high enough for the non-perturbative contributions to be negligible. We find that the average mass of the up and down quark at a momentum of 1 GeV lies between 3.3 and 7.9 MeV while that for the strange quark lies between 84 and 212 MeV. The ranges of values reflect predominantly the uncertainty in the absorptive part in the low energy region (approx. <= 1.7 GeV).}
journal = {Nucl. Phys. B; (Netherlands)}
volume = {193:2}
journal type = {AC}
place = {Netherlands}
year = {1981}
month = {Dec}
}