Soft-collinear effects for prompt photon production via fragmentation

TL;DR

This paper investigates the influence of soft-collinear effects on the theoretical calculations of prompt photon production through fragmentation, finding these effects to be small but significant across different experimental setups.

Contribution

It extends previous work by analyzing soft-collinear effects on fragmentation processes, complementing studies on direct photon production.

Findings

Soft-collinear effects are small but noticeable.

Effects are comparable to those in direct production.

Impact is consistent across fixed-target and collider kinematics.

Abstract

We study the impact of leading soft-collinear effects on threshold and joint-resummed calculations for the production of prompt photons via parton fragmentation, complementing a previous study for direct production. We assess these effects for both fixed-target and collider kinematics. We find them to be small, but noticeable and comparable to the direct case.