对称性自发破缺重正化方法的简单应用

Simple Application of Method of the Renormalization to Spontaneous Symmetry Breaking

微扰论是粒子物理学中一种非常有用的方法,但是在计算中会产生对称性自发玻缺.若用抵消项重正化方法,可以通过对标量系统的拉氏量密度进行处理,由量子场论中分离出有意义的物理结果.可以弥补微扰论方法的不足.文章以4阶自相互作用介子场的抵消项重整化应用例子进行说明.

The perturbation theory is a very appealing method in particle physics. But at usual the perturbation theory devastation symmetry in computation,bring about symmetry spontaneity breaking. Whereas, introduction of counterweigh term may zero perturbation and the Lagrange density of self-acting term producing symmetry spontaneity breaking proceed renormalization,make up the perturbation theory methodical fall short. The article discusses the application of the counterweigh term renormalization in the meson field of four-steps self-acting.