Analysisofthestandardmodelofparticlephysicsandbeyondusingchiralfermions

针对粒子物理标准模型(SM)中Cabibbo-Kobayashi-Maskawa(CKM)理论的精度检验，建立或测试了格点QCD计算中的一系列新技术。这使得SM中的基本参数--S夸克质量、平均uD夸克质量的主要系统误差减小到1/5，使高精度地确定pi、K介子衰变常数和中性K介子混合参数成为可能，并已用于B介子衰变常数和混合参数的精确测量，以及探索SM之外的物理所需的质子衰变矩阵元的计算。

A series of new techniques in thelattice QCDcomputationare lattice constructed or tested, aiming a precision test of Cabibbo-Kobayashi-Maskawa(CKM) theory in the standard model(SM) of particle physics, which is the current compilation of the particle physics. These yielded the reduction of the main systematic error to 1/5 on the s-quark mass, average ud quark mass, which are the fundamental parameters in SM, made it possible to determine the pi, K meson decay constant and neutral K meson mixing parameter to a high precision, and have been used to a precision measurements of the B meson decay constants and mixing parameters, as well as to the calculation of the proton decay matrix elements needed for the quest of the physics beyond SM.