A COVARIANT MODEL FOR DYNAMIC CHIRAL-SYMMETRY BREAKING IN QCD

被引：23
|
作者：
VONSMEKAL, L [1 ]
AMUNDSEN, PA [1 ]
ALKOFER, R [1 ]
机构：
[1] HOGSKOLESENTERET ROGALAND, INST MATEMAT & NAT VITENSKAP, N-4004 STAVANGER, NORWAY
来源：
NUCLEAR PHYSICS A | 1991年 / 529卷 / 04期
关键词：
D O I：
10.1016/0375-9474(91)90589-X
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Assuming a 1/k4 behaviour of the gluon propagator for small euclidean momenta we are investigating the infrared properties of the quark propagator and the quark-gluon vertex function using a covariant model motivated by QCD and its Slavnov-Taylor identities. Keeping the known high-energy behaviour of the gluon propagator we discuss in detail the renormalization of the Dyson-Schwinger equation. Numerical results are given for the quark propagator, the quark condensate and the pion decay constant.
引用
收藏
页码：633 / 652
页数：20
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