标题： 高扭曲在从深度非弹性散射数据确定极化部分子密度中的作用 显示英文标题

标题： The Role of Higher Twist in Determining Polarized Parton Densities from DIS data

摘要： 不同的方法用于从世界极化深度非弹性散射数据中提取极化部分子密度。 发现高扭曲修正$h^N(x)/Q^2$对自旋相关的质子和中子$g_1$结构函数是非微不足道的，并在当前实验数据的QCD分析中非常重要。 它们在不同方法框架中确定极化部分子密度中的作用被讨论。 显示英文摘要

摘要： Different methods to extract the polarized parton densities from the world polarized DIS data are considered. The higher twist corrections $h^N(x)/Q^2$ to the spin dependent proton and neutron $g_1$ structure functions are found to be non-negligible and important in the QCD analysis of the present experimental data. Their role in determining the polarized parton densities in the framework of the different approaches is discussed.