We present a general formula to extract the proton structure function F _2(x,Q ~2) directly from the gluon distribution function G(x,Q ~2). This result is according to the M M Block method (Block et al 2008 Phys. Rev. D 77 094003) and derived from the leading order DGLAP evolution equation for the gluon distribution function. We have shown that the solution second-order linear differential equation for the gluon distribution function, as presented by Block, gives accurate results for the structure function when compared with GJR parameterization.
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机译：我们提出了一个一般公式，可直接从胶子分布函数G（x，Q〜2）提取质子结构函数F _2（x，Q〜2）。该结果根据M M Block方法（Block等，2008 Phys。Rev. D 77 094003），并从针对胶子分布函数的前导DGLAP演化方程得出。我们已经表明，由Block表示的胶子分布函数的解二阶线性微分方程与GJR参数化相比给出了结构函数的准确结果。
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