论文标题
晶格QCD的kaon和pion的价值分布
Valence-Quark Distribution of the Kaon and Pion from Lattice QCD
论文作者
论文摘要
我们介绍了使用大型摩肌有效理论（LAMET）方法对Kaon Valence-Quark分布函数进行的第一个晶格-QCD计算。该计算是用最轻的质量质量进行的，在220 MeV左右，2个晶格间距$ a = 0.06 $和0.12 fm，$（m_π）_ \ text {min} l \ 5.5 $，高统计范围为11,600至61,312的高统计量。我们还计算了TION的价值分布，发现它与FNAL E615实验结果一致，并且我们在Kaon中$ U $ QUARK PDF的比率与PION中的$ U $ Quark PDF与Cern Na3实验一致。我们还对Kaon的奇怪夸克分布进行了预测。
We present the first lattice-QCD calculation of the kaon valence-quark distribution functions using the large-momentum effective theory (LaMET) approach. The calculation is performed with multiple pion masses with the lightest one around 220 MeV, 2 lattice spacings $a=0.06$ and 0.12 fm, $(M_π)_\text{min} L \approx 5.5$, and high statistics ranging from 11,600 to 61,312 measurements. We also calculate the valence-quark distribution of pion and find it to be consistent with the FNAL E615 experimental results, and our ratio of the $u$ quark PDF in the kaon to that in the pion agrees with the CERN NA3 experiment. We also make predictions of the strange-quark distribution of the kaon.
