HERWIRI2.1: Electroweak Corrections for Hadron Scattering

TL;DR

HERWIRI2.1 is a computational tool that accurately models electroweak and photonic radiative corrections in hadron scattering, enabling precise event generation and comparison with other simulation programs.

Contribution

HERWIRI2.1 introduces exponentiated order alpha-squared photonic corrections and electroweak effects into hadron scattering simulations, integrating with existing Monte Carlo tools.

Findings

Comparison with HERWIG6.5 shows consistency.

Preliminary results demonstrate the program's accuracy.

Electroweak corrections improve simulation fidelity.

Abstract

We describe the program HERWIRI2.1, which implements order alpha-squared photonic radiative corrections exponentiated at the amplitude level (initial state, final state, and initial-final interference) and electroweak corrections to the matrix element by generating events using the KK Monte Carlo to generate the hard process, with quark initial states generated according to PDFs via an LHAPDF interface. The events can be showered internally using HERWIG6.5 or exported and showered using any desired external showering program. Some early results are shown, including comparisons to HERWIG6.5 and HORACE 3.1.