Discussion of on the Translational Invariance the Gluon Condensate

Chin. Phys. Lett.

1992, Vol. 9

Issue (1): 5-8 DOI:

Original Articles

Discussion of on the Translational Invariance the Gluon Condensate

BIAN Jianguo;HUANG Tao

Institute of High Energy Physics, Academia Sinica, Beijing 100039

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BIAN Jianguo, HUANG Tao 1992 Chin. Phys. Lett. 9 5-8

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Abstract In this article, the nonvanishing vacuum average value of two-point function of gluons <Ω|A^a_μ(x)A^b_v(y)|Ω>, which is related to the quantitative analyses of the nonperturbative effects in quantum chromodynamics(QCD), is expanded in the space-time interval r=x-y in the Lorentz gauge. The first two coefficient values are estimated with the phenomenological values for the vacuum condensates <Ω|G²|Ω> and <Ω|ψψ|Ω> through the QCD motion equations. The advantage of the expansion is that the series remains translationally invariant as compared with the expansion of <Ω|A^a_μ(x)A^b_v(y)|Ω> in the fixed-point gauge.

Keywords: 12.38.Aw 12.38.Bx

Published: 01 January 1992

PACS:	12.38.Aw	(General properties of QCD (dynamics, confinement, etc.))
	12.38.Bx	(Perturbative calculations)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1992/V9/I1/05

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