论文标题
晶格QCD对重媒体的包含半衰减的衰减
Lattice QCD study of inclusive semileptonic decays of heavy mesons
论文作者
论文摘要
我们提出了一项关于lattice QCD沉重介体的包容性半衰减衰减的初始研究。我们的方法基于最近提出的方法，该方法可以通过从晶格上的四点相关器中提取的涂抹光谱函数的分析来解决这些衰变的研究，在该功能中，根据与包容性衰减相关的相位集成来定义涂片。我们提出了从JLQCD和ETM协作的量规场合的结果，并讨论了它们与操作员产品扩展的理论预测的关系。
We present an ab initio study of inclusive semileptonic decays of heavy mesons from lattice QCD. Our approach is based on a recently proposed method, that allows one to address the study of these decays from the analysis of smeared spectral functions extracted from four-point correlators on the lattice, where the smearing is defined in terms of the phase-space integration relevant to the inclusive decays. We present results obtained from gauge-field ensembles from the JLQCD and ETM collaborations, and discuss their relation with theoretical predictions from the operator-product expansion.
