Transverse Parton Distribution Functions at Next-to-Next-to-Leading Order: The Quark-to-Quark Case

被引：89

作者：

Gehrmann, Thomas ^{[1
]}

Luebbert, Thomas ^{[1
]}

Yang, Li Lin ^{[1
,2
,3
]}

机构：

[1] Univ Zurich, Inst Theoret Phys, CH-8057 Zurich, Switzerland

[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[3] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2012年 / 109卷 / 24期

关键词：

3-LOOP SPLITTING FUNCTIONS; YAN CROSS-SECTION; LOGARITHMIC CORRECTIONS; BOSON PRODUCTION; MOMENTUM; COEFFICIENTS; DENSITIES; DECAY; QCD;

D O I：

10.1103/PhysRevLett.109.242003

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a calculation of the perturbative quark-to-quark transverse parton distribution function at next-to-next-to-leading order based on a gauge invariant operator definition. We demonstrate for the first time that such a definition works beyond the first nontrivial order. We extract from our calculation the coefficient functions relevant for a next-to-next-to-next-to-leading logarithmic Q(T) resummation in a large class of processes at hadron colliders. DOI: 10.1103/PhysRevLett.109.242003

引用

页数：5

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