Calculation of a high order QCD process - gg to t(t)over-bar-gg

Authors
Zhang, DH Wu, DD Wagoner, D Judd, D
Citation
Dh. Zhang et al., Calculation of a high order QCD process - gg to t(t)over-bar-gg, COMM TH PHY, 30(4), 1998, pp. 589-594
Citations number
24
Categorie Soggetti
Physics
Journal title
COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN journal
02536102 → ACNP
Volume
30
Issue
4
Year of publication
1998
Pages
589 - 594
Database
ISI
SICI code
0253-6102(199812)30:4<589:COAHOQ>2.0.ZU;2-S
Abstract
We use the permutation group of order 4 to classify the fourth order tree Q CD Feynman diagrams, which contribute to the gg to t(t)over-bar-gg process. (There are 159 of them.) We also provide new methods to make the color sum , and to check the gauge symmetry of the matrix elements and Feynman parts.