A local formulation of lattice QCD without unphysical fermion zero modes

被引：53

作者：

Frezzotti, R

Grassi, PA

Sint, S

Weisz, P

机构：

[1] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany

[2] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

来源：

NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS | 2000年 / 83-4卷

关键词：

D O I：

10.1016/S0920-5632(00)00399-6

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：

The problem of unphysical zero modes in lattice QCD with Wilson fermions can be solved in a clean way by including a mass term proportional to i<(psi)over bar>gamma(5)tau(3)psi, in the standard lattice theory with N-f = 2 mass degenerate Wilson quarks. We argue that up to cutoff effects, this lattice theory is equivalent to standard lattice QCD, for suitable choices of the mass parameters and with a natural re-interpretation of observables. On-shell O(a) improvement can be implemented in a straightforward way.

引用

页码：941 / 946

页数：6

共 29 条

[1] A NEW PROPOSAL FOR MONTE-CARLO SIMULATION OF FERMIONS ON A LATTICE [J].