We report our recent numerical studies on two-color QCD with Wilson fermions. First the phase structure of the system in (kappa,mu)-plane is analyzed by measuring Polyakov line, baryon number density, gluon energy density and Polyakov line susceptibility. Then meson and baryon (di-quark) propagators are investigated. We find that the vector meson mass decreases near mu_c. This phenomena can be related to the low-mass lepton-pair enhancement observed in CERES experiment. Since our lattice is small, in order to confirm the results, we calculate both periodic and anti-periodic boundary condition cases. Preliminary calculations of color averaged, symmetric and anti-symmetric forces of qq system obtained from Polyakov line correlations, and gluon propagators are reported.
翻译:我们用威尔逊的发酵量报告了我们最近对两种颜色的QCD进行的数字研究。 首先,通过测量聚亚科夫线、巴伦数字密度、格伦能量密度和波罗雅科夫线的易感性来分析(kappa,mu)-平面上的系统的阶段结构。然后调查梅森和巴伦(di-quark)助推器。我们发现矢量介子质量在 mu_c 附近下降。这种现象可能与CERES实验中观察到的低质量lepton-pair的增强有关。由于我们的拉蒂斯小,为了确认结果,我们计算定期和反周期边界状况案例。初步计算了从聚亚科夫线相关关系中得出的q q 系统的彩平均、对称和反对称力量,并报告了 gluon 推进器。