Transversely Polarized Drell-Yan Process and Soft Gluon Resummation in QCD

TL;DR

This paper calculates the transverse momentum spectrum of dileptons in transversely polarized Drell-Yan processes, employing soft gluon resummation to improve accuracy in the small $Q_T$ region based on QCD factorization.

Contribution

It introduces a resummation method for soft gluon emissions in the transversely polarized Drell-Yan process within the QCD framework.

Findings

Resummed soft gluon corrections enhance the accuracy of $Q_T$ spectrum predictions.

The approach accounts for universal logarithmic corrections in the phase space edge region.

Provides a theoretical foundation for analyzing transverse polarization effects in Drell-Yan processes.

Abstract

We calculate the transverse-momentum $Q_T$ spectrum of the dilepton in the transversely polarized Drell-Yan process on the basis of the factorization theorem in QCD. We take into account universal logarithmically enhanced corrections in edge region of phase space by resumming multiple soft-gluon emissions to all orders in the small $Q_T$ region.