Pursuing the Precision Study for Color Glass Condensate in Forward Hadron Productions

TL;DR

This paper enhances the precision of the Color Glass Condensate (CGC) formalism in forward hadron production by implementing threshold resummation, enabling more reliable comparisons with experimental data from RHIC and LHC.

Contribution

The authors develop a threshold resummation technique that stabilizes NLO calculations in CGC, improving the accuracy of predictions for forward hadron production in high-energy collisions.

Findings

Improved stability of NLO calculations in CGC with threshold resummation.

Accurate description of RHIC and LHC data across all p_T regions.

Facilitates precision tests of CGC formalism against experimental results.

Abstract

With the tremendous accomplishments of RHIC and the LHC experiments and the advent of the future Electron-Ion Collider on the horizon, the quest for compelling evidence of the color glass condensate (CGC) has become one of the most aspiring goals in the high energy Quantum Chromodynamics research. Pursuing this question requires developing the precision test of the CGC formalism. By systematically implementing the threshold resummation, we significantly improve the stability of the next-to-leading-order calculation in CGC for forward rapidity hadron productions in $pp$ and $pA$ collisions, especially in the high $p_T$ region, and obtain reliable descriptions of all existing data measured at RHIC and the LHC across all $p_T$ regions. Consequently, this technique can pave the way for the precision studies of the CGC next-to-leading-order predictions by confronting them with a large amount of precise data.