论文标题
底部的夸克质量和校准的不确定性
Bottom Quark Mass with Calibrated Uncertainty
论文作者
论文摘要
我们从QCD QCD总规则中确定底部夸克质量$ \ hat {m} _b $从扰动qCD计算为矢量电流相关器的矩规则，至$ {\ cal o}（\hatα_S^3）$。我们的方法是基于在仅需要共振贡献的一组瞬间的相互一致性的基础上。然后，来自连续区域的其他实验信息可以用于稳定性测试并评估理论不确定性。我们发现$ \ hat {m} _b（\ hat {m} _b）=（4180.2 \ pm 7.9）$ mev for $ \hatα_s（m_z）= 0.1182 $。
We determine the bottom quark mass $\hat{m}_b$ from QCD sum rules of moments of the vector current correlator calculated in perturbative QCD to ${\cal O} (\hatα_s^3)$. Our approach is based on the mutual consistency across a set of moments where experimental data are required for the resonance contributions only. Additional experimental information from the continuum region can then be used for stability tests and to assess the theoretical uncertainty. We find $\hat{m}_b(\hat{m}_b) = (4180.2 \pm 7.9)$ MeV for $\hatα_s(M_Z) = 0.1182$.
