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

Abstract

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.

arXiv comment16 pages, 11 Figures included. Minor typos corrected

References in corpus (23)

• A General Algorithm for Calculating Jet Cross Sections in NLO QCD
• Three-jet cross sections to next-to-leading order
• Global analysis of fragmentation functions for pions and kaons and their uncertainties
• Models for the Polarized Parton Distributions of the Nucleon
• Precise determination of the spin structure function ${\mathbf{g}}_1$ of the proton, deuteron and neutron
• NNLO global parton analysis
• A general approach to jet cross sections in QCD
• The Deuteron Spin-dependent Structure Function g1d and its First Moment
• AKK Update: Improvements from New Theoretical Input and Experimental Data
• Global Analysis of Helicity Parton Densities and Their Uncertainties
• Global Analysis of Fragmentation Functions for Protons and Charged Hadrons
• Polarized Parton Distributions in the Nucleon
• Inclusive cross section and double helicity asymmetry for π^0 production in p+p collisions at sqrt(s)=200 GeV: Implications for the polarized gluon distribution in the proton
• Next-to-leading order QCD corrections to high-p_T pion production in longitudinally polarized pp collisions
• Measurement of Parton Distributions of Strange Quarks in the Nucleon from Charged-Kaon Production in Deep-Inelastic Scattering on the Deuteron
• Measurement of the $x$- and $Q^2$-Dependence of the Asymmetry $A_1$ on the Nucleon
• Inclusive cross section and double helicity asymmetry for pi^0 production in p+p collisions at sqrt(s) = 62.4 GeV
• The Polarised Valence Quark Distribution from semi-inclusive DIS
• Threshold Resummation for the Inclusive-Hadron Cross-Section in pp Collisions
• Next-to-leading order QCD corrections to one hadron-production in polarized pp collisions at RHIC
• Next-to-leading order jet cross sections in polarized hadronic collisions
• Jet cross sections in polarized photon-hadron collisions
• Single-Inclusive Hadron Production in Polarized pp Scattering at Next-to-Leading Logarithmic Accuracy

Cited by in corpus (15)

• Measurement of jet quenching with semi-inclusive hadron-jet distributions in central Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Measurements of jet quenching with semi-inclusive hadron+jet distributions in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
• Hadron Fragmentation Inside Jets in Hadronic Collisions
• Constraints on jet quenching in p-Pb collisions at $\sqrt{{\mathbf{s}}_{\mathbf{NN}}}$ = 5.02 TeV measured by the event-activity dependence of semi-inclusive hadron-jet distributions
• Longitudinal double-spin asymmetry for inclusive jet and dijet production in $pp$ collisions at $\sqrt{s}=510$ GeV
• Measurement of inclusive charged-particle jet production in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV
• Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV
• Hadron plus photon production in polarized hadronic collisions at next-to-leading order accuracy
• Measurements of jet quenching using semi-inclusive hadron+jet distributions in pp and central Pb$-$Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV
• No-quenching baseline for energy loss signals in oxygen-oxygen collisions
• Search for jet quenching effects in high-multiplicity pp collisions at $\sqrt{s}$ = 13 TeV via di-jet acoplanarity
• Parton-shower effects in polarized deep inelastic scattering
• Precision measurement of the longitudinal double-spin asymmetry for dijet production at intermediate pseudorapidity in polarized $pp$ collisions at $\sqrt{s}$ = 200 GeV
• Recent STAR results in high-energy polarized proton-proton collisions at RHIC
• Event activity-dependence of jet production in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}=5.02$ TeV measured with semi-inclusive hadron+jet correlations by ALICE