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

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arxiv 0904.4402 v2 pith:AOPNPGEB submitted 2009-04-28 hep-ph

classification hep-ph
keywords collisionscorrectionsgluonnext-to-leadingorderproductionrhicaccompanied
verification ladder T0 review T1 audit T2 compute T3 formal
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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<x<0.3 range.

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Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Precision measurement of the longitudinal double-spin asymmetry for dijet production at intermediate pseudorapidity in polarized $pp$ collisions at $\sqrt{s}$ = 200 GeV

    hep-ex 2024-11 conditional novelty 5.0 of 10

    New STAR double-spin asymmetry data for dijets at intermediate pseudorapidity favor positive gluon polarization and disfavor the JAM22 negative solution by 3.5 sigma.

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