Hadron plus photon production in polarized hadronic collisions at next-to-leading order accuracy

Abstract

We compute the next-to-leading order QCD corrections to the polarized (and unpolarized) cross sections for the production of a hadron accompanied by an opposite-side prompt photon. This process, being studied at RHIC, permits us to reconstruct partonic kinematics using experimentally measurable variables. We study the correlation between the reconstructed momentum fractions and the true partonic ones, which in the polarized case might allow us to reveal the spin-dependent gluon distribution with a higher precision.

18 figures included. New version, discussion about polarized asymmetries extended, 7 new figures, new references

References in corpus (13)

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• New parton distributions for collider physics
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• Extraction of Spin-Dependent Parton Densities and Their Uncertainties
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Cited by in corpus (5)

• Jets as precision probes in electron-nucleus collisions at the Electron-Ion Collider
• Parton-shower effects in polarized deep inelastic scattering
• Reconstructing partonic kinematics at colliders with Machine Learning
• Constraining fragmentation functions through hadron-photon production at higher-orders
• Phenomenological extraction of fragmentation functions in a $p\bar{p}$ environment