All Order Merging of High Energy and Soft Collinear Resummation

TL;DR

This paper introduces a novel method to merge high energy and soft-collinear resummation techniques, preserving accuracy across all phase space, and compares predictions to experimental data.

Contribution

It presents a new merging approach combining High Energy Jets with Pythia's parton shower, maintaining LO accuracy and resummation logarithmic precision.

Findings

Predictions align well with experimental data.

Highlights the significance of high energy and soft-collinear effects.

Provides guidance for future observables and cuts.

Abstract

We present a method of merging the exclusive LO-matched high energy resummation of High Energy Jets (HEJ) with the parton shower of Pythia which preserves the accuracy of the LO cross sections and the logarithmic accuracy of both resummation schemes across all of phase space. Predictions produced with this merging prescription are presented with comparisons to data from experimental studies and suggestions are made for further observables and experimental cuts which highlight the importance of both high energy and soft-collinear effects.