标题： 新的核物质中核子的QCD求和规则 显示英文标题

标题： New QCD Sum Rules for Nucleons in Nuclear Matter

摘要： 两个新的核物质中核子的QCD求和规则是从自旋-1/2和自旋-3/2插值场的混合关联函数中得到的。 这些新的求和规则对尚不清楚的四夸克凝聚不敏感，提供了关于核子标量自能的额外信息。 这些新的求和规则与之前基于自旋-1/2插值场的求和规则一起进行了分析，这些求和规则同样对尚不清楚的四夸克凝聚不敏感。 分析表明，在核物质饱和密度下与相对论核现象学的预期一致。 然而，建议在接近饱和时密度依赖性较弱。 利用介质中凝聚不确定性的先前估计，我们在核物质饱和密度下发现$M^* = 0.64^{+0.13}_{-0.09}$ GeV 和$\Sigma_v = 0.29^{+0.06}_{-0.10}$ GeV。 显示英文摘要

摘要： Two new QCD sum rules for nucleons in nuclear matter are obtained from a mixed correlator of spin-1/2 and spin-3/2 interpolating fields. These new sum rules, which are insensitive to the poorly known four-quark condensates, provide additional information on the nucleon scalar self-energy. These new sum rules are analyzed along with previous spin-1/2 interpolator-based sum rules which are also insensitive to the poorly known four-quark condensates. The analysis indicates consistency with the expectations of relativistic nuclear phenomenology at nuclear matter saturation density. However, a weaker density dependence near saturation is suggested. Using previous estimates of in-medium condensate uncertainties, we find $M^* = 0.64^{+0.13}_{-0.09}$ GeV and $\Sigma_v = 0.29^{+0.06}_{-0.10}$ GeV at nuclear matter saturation density.