The investigation of excited baryons is very important in understanding the internal structure of baryon and the strong interaction in the nonperturbative quantum chromodynamics ( npqcd ) regime . however , there was not much progress on the baryon spectroscopy data since the late 1970 ' s 核子激发态的研究对我们认识物质微观结构和强相互作用性质有重要意义，目前重子谱的研究对人类认识物质微观结构起着非常的作用。
The kinetic equations for the qgp have been formed under the general frame of the statistical theory and its dynamic basic is the quantum chromodynamics ( qcd ) , which the component particles of the system obey . they are widely used in investigating the properties of the qgp . there are two basic forms of the qgp kinetic theory : quantum kinetic theory and ( semi - ) classical kinetic theory Qgp动力论的基本方程是以系统的成分粒子(夸克、反夸克和胶子)所服从的qcd为动力学基础，按统计理论的一般框架建立起来的，现已广泛应用于讨论qgp的物性，并已证实在“硬热圈”水平上动力论和温度场论的结果是一致的，因而该理论得到普遍的承认。
In quantum chromodynamics ( qcd ) , vacuum is not trivial , that is , vacuum carry quantum numbers . such a behavior is embodied by non - perturbative con - densates of quarks and gluons . since hadrons are excitations with respect to the vacuum , hadronic properties are ultimately related to properties of the vacuum . based on the vacuum structure , some hadron properties have been described well . in the low energy region , qcd has two very important proper - ties : chiral symmetry spontaneous breaking and confinement , which are closely related to the vacuum characteristics of qcd . much experiments and theoretical studies have shown that chiral symmetry spontaneous breaking is very important to understand the low - energy feature of the strongly interacting physics , and the quark condensates give an expression to chiral symmetry spontaneous breaking . according to goldstone ' s theorem , the goldstone bosons with zero mass will emerge as the chiral symmetry is spontaneously broken . there are two ways : inear and non - linear methods to carry out this constraint . in our paper , we will use the non - linear method 大量实验和理论研究表明，手征对称自发破缺对于理解低能强相互作用十分重要，而夸克凝聚又是导致手征对称自发破缺的因素。按goldstone理论，伴随手征对称自发破缺应该会有零质量的goldstonebosons产生。而对于这一条件的实现有线性和非线性两种方法本文将用非线性的方法将手征对称自发破缺应用于su ( 3 )模型即重子八重态，得出描述其强相互作用的手征对称自发破缺lagrange密度。
It is necessary to calculate the resolution formula of cross section to fit experiment , but the formula always depends on special physical model . indeed it is difficult to give out an available result using some physical models , for example quantum chromodynamics problem mostly ca n ' t expand using perturbation approximations 拟合实验数据需要给出各种反应过程截面的解析公式，然而截面公式强烈的依赖于物理模型，甚至用有的物理模型很难给出所要的截面公式，比如粒子色动力学理论一般是无法用微扰展开进行简化的。
