Light hadron spectroscopy with O(a) improved dynamical fermions
Light hadron spectroscopy with O(a) improved dynamical fermions
复制标题
具有 O(a) 改进的动力学费米子的光强子光谱
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
H. Wittig
中科院分区：
文献类型：
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作者：
C. Allton;S. Booth;K. Bowler;M. Foster;J. Garden;A. Irving;R. Kenway;Chris Michael;J. Peisa;S. Pickles;James C. Sexton;Z. Sroczynski;M. Talevi;H. Wittig
我们给出了用O（a）改进的Wilson费米子作用量和规范部分的标准Wilson元格作用量在b55.2处用动态费米子计算静态夸克势和轻强子谱的第一个结果。海夸克质量的选择使得赝标量矢量质量比mPS /mV在0.86到0.67之间变化。通过使用三个不同的体积83324，123324和163324来研究尺寸效应。将我们的结果与先前使用淬灭近似获得的结果进行比较，我们发现了海夸克效应在静态夸克势和矢量赝标超精细分裂等数量上的证据。（@S0556-2821（99）00613-X）
We present the first results for the static quark potential and the light hadron spectrum using dynamical fermions at b55.2 using an O(a) improved Wilson fermion action together with the standard Wilson plaquette action for the gauge part. Sea quark masses were chosen such that the pseudoscalar-vector mass ratio, mPS /mV , varies from 0.86 to 0.67. Finite-size effects are studied by using three different volumes 83324, 123324, and 163324. Comparing our results to previous ones obtained using the quenched approximation, we find evidence for sea quark effects in quantities such as the static quark potential and vector-pseudoscalar hyperfine splitting. (@S0556-2821(99)00613-X)