标题： 未极化和极化部分子分布之间的简单关系的实验证据 显示英文标题

标题： Experimental Evidence for Simple Relations between Unpolarized and Polarized Parton Distributions

摘要： 泡利不相容原理被用于根据费米-狄拉克分布构建质子和中子的深度非弹性结构函数，我们用很少的参数来对这些分布进行参数化。 它能够对最近的NMC在$F^p_2(x,Q^2)$和$F^n_2(x,Q^2)$的数据以及CCFR在$Q^2=4 GeV^2$的中微子数据进行合理的描述，以及在$Q^2=3$和$5 GeV^2$的数据。 我们还做出了一些合理且简单的假设来联系非极化和极化的夸克部分子分布，并且在没有额外自由参数的情况下，得到了自旋相关的结构函数$xg^p_1(x,Q^2)$和$xg^n_1(x,Q^2)$。 使用正确的$Q^2$演化，我们确认它们与最近的 SMC 质子数据在$Q^2=10 GeV^2$和 SLAC 中子数据在$Q^2=2 GeV^2$之间有很好的一致性。 显示英文摘要

摘要： The Pauli exclusion principle is advocated for constructing the proton and neutron deep inelastic structure functions in terms of Fermi-Dirac distributions that we parametrize with very few parameters. It allows a fair description of the recent NMC data on $F^p_2(x,Q^2)$ and $F^n_2(x,Q^2)$ at $Q^2=4 GeV^2$, as well as the CCFR neutrino data at $Q^2=3$ and $5 GeV^2$. We also make some reasonable and simple assumptions to relate unpolarized and polarized quark parton distributions and we obtain, with no additional free parameters, the spin dependent structure functions $xg^p_1(x,Q^2)$ and $xg^n_1(x,Q^2)$. Using the correct $Q^2$ evolution, we have checked that they are in excellent agreement with the very recent SMC proton data at $Q^2=10 GeV^2$ and the SLAC neutron data at $Q^2=2 GeV^2$.