论文标题
在荷花型模型中质子的质量分解
Mass decomposition of the pion in the 't Hooft model
论文作者
论文摘要
我们在二维量子染色体动力学的'T HOOFT模型中获得了能量量张量（EMT）。 EMT分解为夸克和Gluon场的贡献，其中所有（加上）光前动量的所有（加上组件）都由夸克场携带。能量分为夸克和格鲁恩田，而格鲁恩田则带有穿着夸克的自我能源。我们将小质量质量质量（以前已经经受住数值处理）的极限为一项具体示例。我们使用一种变分方法求解Pion波函数，并获得其能量分解成夸克和Gluon贡献的数值结果。
We obtain the energy-momentum tensor (EMT) in the 't Hooft model of two-dimensional quantum chromodynamics. The EMT is decomposed into contributions from quark and gluon fields, with all of the (plus component of) the light front momentum being carried by the quark field. The energy is split between quark and gluon fields, with the gluon field carrying the self-energy of the dressed quarks. We consider the pion in the limit of small but non-zero quark masses -- which has previously withstood numerical treatment -- as as a concrete example. We solve for the pion wave function using a variational method and obtain numerical results for its energy breakdown into quark and gluon contributions.
