极化质子内部分子的自旋分布

The Spin Distribution of the Partons in the Polarized Proton

本文讨论了极化质子内部分子自旋对质子自旋的贡献,与自旋相关的质子结构函数g(?)的一次矩及xg(?)的函数分布。假定极化质子内部分子的自旋分布与非极化质子内部分子分布是关联的,本文构造了关联函数把它们联系了起来。同时把胶子的反常贡献和部分子的轨道角动量的贡献都考虑在内,计算结果与实验数据符合很好。

The spin distribution of the partons in the polarized proton, the first moment of the spin-dependent proton structure function g1p and the distribution function xg1p are discussed. Suppose that the spin distribution of the partons in the polarized proton is correlated with the parton distribution in the unpolariged one, and the correlation functions are constructed. A good agreement with the experimental data is obtained when the contribtuions of the anomalous gluons and the orbital angle momentum of the partons are calculated in.