Vanishing dynamical quark mass at zero virtuality?
- 18 April 2002
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 65 (9) , 094007
- https://doi.org/10.1103/physrevd.65.094007
Abstract
We show that the dynamical quark mass in effective nonlocal models can vanish at zero virtuality of the quark as Our arguments follow from the constrained-instanton model of the QCD vacuum and from QCD sum rule calculations with nonlocal condensates. The discussed models also lead to analyticity of in the vicinity of zero.
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This publication has 22 references indexed in Scilit:
- The gauge invariant quark correlator in QCD sum rules and lattice QCDJournal of High Energy Physics, 2000
- Gluon field strength correlation functions within a constrained instanton modelThe European Physical Journal C, 2000
- Gauge-invariant quark-antiquark nonlocal condensates in lattice QCDPhysical Review D, 1999
- Instantons in QCDReviews of Modern Physics, 1998
- Dyson-Schwinger equations and their application to hadronic physicsProgress in Particle and Nuclear Physics, 1994
- Nonlocal condensates and QCD sum rules for the pion wave functionPhysical Review D, 1992
- High-energy behavior of baryon- and lepton-number violating scattering amplitudes in the standard modelNuclear Physics B, 1990
- A theory of light quarks in the instanton vacuumNuclear Physics B, 1986
- On constrained instantonsNuclear Physics B, 1981
- Toward a theory of the strong interactionsPhysical Review D, 1978