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arXiv 1212.3733hep-ph
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部分子分布的小x行为。分析和“冻结”的耦合常数。BFKL更正

Small x behavior of parton distributions. Analytical and "frozen" coupling constants. BFKL corrections

A. V. Kotikov

摘要:

研究表明,在Wilson算子乘积展开式的首扭近似下,在“冻结”和解析的强耦合常数下,结构函数F2和F2cc的Bessel启发行为,以及在小x值下的导数d(lnF 2)/d(ln(1/x)),对于DGstrom演化方程中的平坦初始条件,与HERA的深度非弹性散射实验数据吻合较好。

英文摘要:

It is shown that in the leading twist approximation of the Wilson operator product expansion with "frozen" and analytic strong coupling constants, Bessel-inspired behavior of the structure functions F2 and F2cc and also the derivative d(ln F2)/d(ln(1/x)) at small x values, obtained for a flat initial condition in the DGLAP evolution equations, leads to good agreement with the deep inelastic scattering experimental data from HERA.

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