深度非弹单态结构函数及无标度性破坏

深度非弹味单态结构函数能比非单态结构函数给出QCD更好的检验。我们用QCD分析了轻子核子深度非弹散射过程,借助于雅可比多项式,给出了味单态核子结构函数的解析式。这解析式包括四至五个参数,较好地表示了单态结构函数随x和Q²的变化。在QCD的领头阶,所得的结果与实验相符合。 关键词：

DEEP INELASTIC SINGLET STRUCTURE FUNCTIONS AND SCALING VIOLATION

The flavour singlet structure functions of deep inelastic scattering processes can yield more decisive tests of QCD than the non-singlet. We give analytical expression for flavour singlet structure functions through analysing the lepton-nucleon deep inelastic scattering processes by means of QCD and using Jacobi polynomials. This expression contains 4 to 5 parameters and shows the changes of the singlet structure functions with x and Q² very well. In QCD leading order, the conclusion is in reasonable agreement with experimental data.