Quenched staggered light hadron spectroscopy from 483 x 64 at β = 6.5

被引:8
作者
Kim, S [1 ]
Ohta, S
机构
[1] Seoul Natl Univ, Ctr Theoret Phys, Seoul, South Korea
[2] Natl Lab High Energy Phys, KEK, High Energy Accelerator Res Org, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 305, Japan
关键词
D O I
10.1016/S0920-5632(97)00716-0
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 report our light hadron mass calculation based on an increased statistics of 250 quenched gauge configurations on a 48(3) x 64 lattice at beta = 6.5. Quark propagators are calculated for each of these configurations with staggered wall source and point sink at quark mass values of m(q) = 0.01, 0.005, 0.0025 and 0.00125. We also did additional calculations to improve our understanding of systematic biases arising from autocorrelation, source size, and propagator calculations. Our earlier conclusions that the flavor symmetry breaking is reduced and the ratio m(N)/m(rho)(similar to 1.25(4)) is small remains robust.
引用
收藏
页码:185 / 187
页数:3
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