Single-inclusive jet production in polarized pp collisions at RHIC to next-to-leading logarithmic accuracy

TL;DR

This paper improves theoretical predictions for single-inclusive jet production in polarized proton collisions at RHIC by applying next-to-leading logarithmic resummation, leading to more accurate calculations of spin asymmetries.

Contribution

It introduces a next-to-leading logarithmic resummation matched to NLO calculations for polarized jet production, enhancing precision in theoretical predictions.

Findings

Enhanced spin-dependent cross section at high transverse momentum

Small increase in double-spin asymmetry A_LL

Numerical results for RHIC energies (200 and 500 GeV)

Abstract

We perform the resummation of large logarithmic corrections to the partonic cross sections for single-inclusive jet production in polarized pp collisions. We reach the next-to-leading logarithmic accuracy for this observable with the corresponding matching to the next-to-leading order calculation performed in the small-cone approximation. We present numerical results for the BNL-RHIC collider at \sqrt{S}=200 GeV and 500 GeV. We find an enhancement of the spin-dependent cross section, specially at high transverse momentum for the jet, resulting in a rather small increase of the double-spin asymmetry A_LL for this process.