Physics – High Energy Physics – High Energy Physics - Lattice
Scientific paper
1999-09-13
Nucl.Phys.Proc.Suppl. 83 (2000) 221-223
Physics
High Energy Physics
High Energy Physics - Lattice
Talk presented at LATTICE99(spectrum). Work done with RIKEN/BNL/CU collaboration. 3 pages
Scientific paper
Due to the attractive features that domain wall fermions possess with respect to chiral symmetry, we continue our investigation of the light quark masses with this discretization. Achieving reliable results, especially for $(m_u + m_d)/2$, requires strict control of systematic uncertainties. Our present results were obtained on a quenched $\beta =6.0$ lattice with spatial volume $\approx (1.5~{\rm fm})^3$. Consequently we remark on effects of finite volume as well as finite extent in the fictitious fifth dimension. We compute the renormalization factors nonperturbatively and compare to the one--loop perturbative result.
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