Axial anomaly and low energy tests for instanton vacuum models in QCD

被引：0

作者：

Di Salvo E. ^{[1
]}

Musakhanov M.M. ^{[2
,3
]}

机构：

[1] Dipartimento di Fisica, Universitá di Geneva, I-16146 Genova, via Dodecaneso

[2] Research Center for Nuclear Physics, Osaka University, Ibaraki Osaka 567

[3] Theoretical Physics Dept, Tashkent State University

来源：

The European Physical Journal C - Particles and Fields | 1998年 / 5卷 / 3期

关键词：

Chiral Limit; Exact Relation; Axial Anomaly; Vacuum Model; Energy Test;

D O I：

10.1007/s100529800869

中图分类号：

学科分类号：

摘要：

We propose to test instanton models of QCD - in particular the single instanton approximation and the Diakonov and Petrov model - against some exact relations inferred from QCD + QED axial anomaly. One of these relations, in chiral limit, is satisfied by the latter model, but not by the former one. More refined tests, obtained beyond the chiral limit, are not fulfilled by the Diakonov and Petrov model.

引用

页码：501 / 506

页数：5