A Study of the Off-Shell Calculation in the Quark-Gluon Vertex

Chin. Phys. Lett.

1997, Vol. 14

Issue (10): 724-727 DOI:

Original Articles

A Study of the Off-Shell Calculation in the Quark-Gluon Vertex

YANG Jian-jun^1,3;LI Guang-lie^2,3;HUANG Tao^2,3

¹Department of Physics, Nanjing Normal University, Nanjing 210024 ²CCAST(Wor1d Laboratory), P. O. Box 8730, Beijing 100080 ³1nstitute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039

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YANG Jian-jun, LI Guang-lie, HUANG Tao 1997 Chin. Phys. Lett. 14 724-727

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Abstract The off-shell calculation is studied in the quark-gluon vertex with dimension-4 gluon condensate in the fixed-point gauge. It is noted that the evaluated result depends on whether the zero point is set on the fermionic or gluonic line for the off-shell calculation in the quark-gluon vertex. In order to obtain more reasonable results, it is suggested that a covariant gauge should be adopted.

Keywords: 12.38.Lg 24.85.+p

Published: 01 October 1997

PACS:	12.38.Lg	(Other nonperturbative calculations)
	24.85.+p	(Quarks, gluons, and QCD in nuclear reactions)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y1997/V14/I10/0724

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