Nonperturbative renormalisation of composite operators with overlap quarks

被引：0
|
作者：
Zhang, JB [1 ]
Leinweber, DB
Liu, KF
Williams, AG
机构：
[1] Univ Adelaide, Special Res Ctr Subatom Struct Matter, CSSM Lattice Collaborat, Adelaide, SA 5005, Australia
[2] Univ Adelaide, Dept Phys, Adelaide, SA 5005, Australia
[3] Univ Kentucky, Dept Phys & Astron, Lexington, KY 40506 USA
来源：
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2004年 / 128卷
基金：
澳大利亚研究理事会;
关键词：
D O I：
10.1016/S0920-5632(03)02484-8
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
We compute non-perturbatively the renormalisation constants of composite operators on a 16(3) x 32 lattice with lattice spacing a = 0.093 fin for the overlap fermion action by using the regularisation independent (111) scheme. The quenched gauge configurations are generated by tadpole improved plaquette plus rectangle action. We test the perturbative continuum relation Z(A) = Z(V) and Z(S) = Z(P) and find that they agree well above p = 1.6 GeV. We also perform a Renormalisation Group analysis at the next-to-next-to-leading order and convert the renormalisation constants to the MS scheme.
引用
收藏
页码：240 / 247
页数：8
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