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

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

2009-04-28

arxiv.org/abs/0904.4402v2

Phys.Rev.D79:114014,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages, 11 Figures included. Minor typos corrected

Scientific paper

10.1103/PhysRevD.79.114014

We compute the next-to-leading order 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

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