THE CHIRAL U(1) SYMMETRY IN LATTICE QCD WITH WILSON FERMIONS

被引：3
|
作者：
UNGARELLI, C
机构：
[1] UNIV PISA,DIPARTIMENTO FIS,I-56100 PISA,ITALY
[2] UNIV PISA,IST NAZL FIS NUCL,I-56100 PISA,ITALY
来源：
INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 1995年 / 10卷 / 15期
关键词：
D O I：
10.1142/S0217751X95001108
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：
The properties of singlet flavor chiral symmetry of lattice QCD with Wilson fermions are analyzed. We show that a suitable U (1) axial current can be defined, satisfying, in the continuum limit, the Adler-Bell-Jackiw anomaly. Moreover, the renormalization properties of composite operators which appear in U(1) chiral Ward identities are discussed. Finally, starting from the renormalized Ward identities for the axial U(1) current, we analyze a definition of topological susceptibility suitable for nonperturbative studies and discuss preliminary numerical results.
引用
收藏
页码：2269 / 2290
页数：22
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