Lattice QCD simulation with 2+1 flavors of chiral symmetry

量子色动力学（QCD）的手性对称性在夸克动力学中起着重要作用。在晶格QCD模拟中，模型无关的QCD计算是可能的，直到最近才有可能模拟精确的手性对称。在这项研究中，我们进行了2+1口味的晶格QCD的大规模数值模拟，对应于u， d和s夸克。我们计算了风味物理中对基本粒子物理标准模型的检验有重要意义的各种矩阵元素。

The chiral symmetry of Quantum Chromodynamics (QCD) plays an important role in the dynamics of quarks. In lattice QCD simulations, with which model independent computation of QCD is possible, only recently an exact chiral symmetry has become possible to simulate. In this study, we have performed a large scale numerical simulation of lattice QCD with 2+1 flavors which corresponds to u, d, and s quarks. We have computed various matrix elements in flavor physics which are important for tests of the standard model of elementary particle physics.