Squeezed gluon vacuum and the global color model of QCD
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World Scientific Publishing
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Abstract
We discuss how the vacuum model of Celenza and Shakin with a squeezed gluon condensate can explain the existence of an infrared singular gluon propagator frequently used in calculations within the global color model. In particular, it reproduces a recently proposed QCD-motivated model where low energy chiral parameters were computed as a function of a dynamically generated gluon mass. We show how the strength of the confining interaction of this gluon propagator and the value of the physical gluon condensate may be connected.
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English
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Modern Physics Letters A, v. 14, n. 29, p. 2049-2057, 1999.
