基于推广的QCD向量介子为主的模型(QCD-VMD)和具有QCD特征的程函近似,研究了光子-光子的相互作用。与通常用费曼盒子图计算光子-光子的相互作用不同,采用QCD理论揭示了光子-光子的相互作用过程,认为光子-光子的弹性散射是通过两个散射的光子所涨落成的两个夸克-反夸克对之间的强相互作用而进行的。由于强相互作用的传播子是带色的胶子和胶子的自相互作用的性质,交换的胶子可以形成无色的胶子球,无色的张量胶子球(两个雷其化的胶子束缚态)和Odderon(三个雷其化的胶子束缚态),可以是两个夸克-反夸克对之间的作用的媒介子,这个机制非常不同于其他理论描述,特别是考虑了由虚胶子(束缚夸克和反夸克形成的涨落介子)的贡献。计算了总截面σtot,微分截面dσ/dt,向前散射振幅实部与虚部的比率ρ和γγ弹性散射的核斜率参数函数β。在实验误差的范围内,对总截面σtot的理论预言和实验数据是一致的,但急需dσ/dt,ρ和β的实验数据来检验本理论模型。
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