Squeezed gluon vacuum and the global color model of QCD

Authors
Citation
Aa. Natale, Squeezed gluon vacuum and the global color model of QCD, MOD PHY L A, 14(29), 1999, pp. 2049-2057
Citations number
46
Categorie Soggetti
Physics
Journal title
MODERN PHYSICS LETTERS A
ISSN journal
02177323 → ACNP
Volume
14
Issue
29
Year of publication
1999
Pages
2049 - 2057
Database
ISI
SICI code
0217-7323(19990921)14:29<2049:SGVATG>2.0.ZU;2-#
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 propaga tor frequently used in calculations within the global color model. In parti cular, it reproduces a recently proposed QCD-motivated model where low ener gy 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 conn ected.