Testing the Standard Model on lattice QCD with exact chiral symmetry

我们对具有精确手征对称性的晶格QCD进行了大规模模拟，以精确确定标准模型精确测试所需的强子矩阵元。通过仔细检验我们的结果与手征微扰理论对介子电磁形状因子的一致性，证明了数值模拟的可靠性。然后，我们精确地确定了核子奇异夸克含量和Kaon半轻子形状因子，这对于直接实验寻找暗物质和精确确定CKM矩阵元素是很重要的。

We performed large-scale simulations of lattice QCD with exact chiral symmetry for a precise determination of the hadronic matrix elements needed for the precise test of the Standard Model. The reliability of the numerical simulations was demonstrated by carefully examining the consistency of our results for the pion electromagnetic form factor with chiral perturbation theory. We then precisely determine the nucleon strange quark content and the kaon semileptonic form factors which are important for the direct experimental searches for dark matter and precise determination of the CKM matrix elements.