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arXiv 0704.2404hep-ph
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BFKL处于次次领头阶的地位

BFKL at Next-to-Next-to-Leading Order

Simone Marzani, Richard D. Ball, Pietro Falgari, Stefano Forte

摘要:

我们确定了一个近似表达式为O(α_s^3)的贡献chi_2的核心的BFKL方程,其中包括所有共线和反共线的奇异贡献。这是来自使用最近的结果之间的关系的GRESS和BFKL内核(包括运行耦合效应的所有订单)和小x因式分解计划。我们提出的结果在各种计划,相关的应用程序的BFKL方程和小x演化的部分子分布。

英文摘要:

We determine an approximate expression for the O(alpha_s^3) contribution chi_2 to the kernel of the BFKL equation, which includes all collinear and anticollinear singular contributions. This is derived using recent results on the relation between the GLAP and BFKL kernels (including running-coupling effects to all orders) and on small-x factorization schemes. We present the result in various schemes, relevant both for applications to the BFKL equation and to small-x evolution of parton distributions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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