HERWIRI2: CEEX Electroweak Corrections in a Hadronic MC

TL;DR

HERWIRI2 enhances the precision of W and Z boson production simulations at the LHC by integrating electroweak corrections with QCD effects using YFS exponentiation in HERWIG.

Contribution

It implements order alpha electroweak corrections and YFS exponentiation in HERWIG, advancing the combined QED and QCD correction framework for high-precision collider predictions.

Findings

Achieved initial implementation of electroweak corrections in HERWIG.

Outlined steps for further development to reach 1% precision.

Set the stage for combined QED and QCD exponentiation in Monte Carlo simulations.

Abstract

Reaching the 1% precision level for W and Z production calculations for the LHC will require a mixture of higher order QCD and electroweak corrections. As a first step toward implementing the combined QED\otimesQCD exponentiation proposed in previous work, we have implemented the order alpha electroweak corrections and YFS exponentiation structure of the KK Monte Carlo in HERWIG. We discuss the current status of this program and sketch the further developments needed to reach the desired precision level.