Next-to-leading order QCD corrections to hadron plus jet production in pp collisions at RHIC

被引：12
|
作者：
de Florian, Daniel [1 ]
机构：
[1] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, Argentina
来源：
PHYSICAL REVIEW D | 2009年 / 79卷 / 11期
关键词：
CROSS-SECTIONS; PARTON DISTRIBUTIONS;
D O I：
10.1103/PhysRevD.79.114014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We compute the next-to-leading order (NLO) QCD corrections to the spin-independent and spin-dependent cross sections for the production of a single-hadron accompanied by an opposite jet in hadronic collisions. This process is being studied experimentally at RHIC, providing a new tool to unveil the polarized gluon distribution Delta g. We perform a detailed analysis of the phenomenological impact of the observable at NLO accuracy and show that the preliminary data by the STAR collaboration confirms the idea of a small gluon polarization in the 0.05 less than or similar to x less than or similar to 0.3 range.
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页数：9
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