QUARK, GLUON AND GHOST ANOMALOUS DIMENSIONS AT 0(1/NF) IN QUANTUM CHROMODYNAMICS

被引:27
作者
GRACEY, JA
机构
[1] Department of Applied Mathematics and Theoretical Physics, University of Liverpool, Liverpool, L69 3BX
关键词
D O I
10.1016/0370-2693(93)91803-U
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
By considering the scaling behaviour of various Feynman graphs at leading order in large N(f) at the non-trivial fixed point of the d-dimensional beta-function of QCD we deduce the critical exponents corresponding to the quark, gluon and ghost anomalous dimensions as well as the anomalous dimensions of the quark-quark-gluon and ghost-ghost-gluon vertices in the Landau gauge. As the exponents encode all orders information on the perturbation series of the corresponding renormalization group functions we find agreement with the known three loop structure and, moreover, we provide new information at all subsequent orders.
引用
收藏
页码:177 / 183
页数:7
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