HL-LHC Computing Review Stage-2, Common Software Projects: Event Generators

TL;DR

This paper reviews the development and challenges of event generator software for HL-LHC computing, providing insights into the current state and future needs of Monte Carlo simulation tools for high-energy physics.

Contribution

It offers a comprehensive overview of the progress, challenges, and future directions of event generator software within the HL-LHC computing context.

Findings

Identifies key challenges in Monte Carlo event generator software for HL-LHC.

Summarizes recent updates and developments in event generator tools.

Highlights future needs for software improvements in high-luminosity collider experiments.

Abstract

This paper has been prepared by the HEP Software Foundation (HSF) Physics Event Generator Working Group (WG), as an input to the second phase of the LHCC review of High-Luminosity LHC (HL-LHC) computing, which is due to take place in November 2021. It complements previous documents prepared by the WG in the context of the first phase of the LHCC review in 2020, including in particular the WG paper on the specific challenges in Monte Carlo event generator software for HL-LHC, which has since been updated and published, and which we are also submitting to the November 2021 review as an integral part of our contribution.