Large-x resummation in Q2 evolution

被引:6
作者
Albino, S. [1 ]
Kniehl, B. A. [1 ]
Kramer, G. [1 ]
机构
[1] Univ Hamburg, Inst Theoret Phys 2, D-22761 Hamburg, Germany
关键词
D O I
10.1103/PhysRevLett.100.192002
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The standard analytic solution to the Dokshitzer-Gribov-Lipatov-Altarelli-Parisi equation in Mellin space is improved by resumming the large-x divergences. Explicit results are given to next-to-leading order and next-to-leading logarithmic accuracy, which significantly reduce the parton density functions' theoretical uncertainties, more than the inclusion of next-to-next-to-leading order corrections in some cases, and is, therefore, of paramount importance for the reliable interpretation of ongoing and future experiments with hadron beams or targets, including those at the CERN Large Hadron Collider.
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页数:4
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