# Simulation of vector boson plus many jet final states at the high luminosity LHC

## TL;DR

This paper introduces a new event simulation framework for efficiently modeling vector boson plus multi-jet backgrounds at the high-luminosity LHC, enabling accurate predictions with up to nine jets.

## Contribution

It presents a novel MPI-parallelized event generation method with HDF5 data storage, producing large, publicly available leading-order merged Monte Carlo samples for complex final states.

## Key findings

- Efficient simulation of vector boson plus multi-jet events up to nine jets.
- Generation of large-scale event samples corresponding to 3ab-1 luminosity.
- Public availability of the generated event samples for future research.

## Abstract

We present a novel event generation framework for the efficient simulation of vector boson plus multi-jet backgrounds at the high-luminosity LHC and at possible future hadron colliders. MPI parallelization of parton-level and particle-level event generation and storage of parton-level event information using the HDF5 data format allow us to obtain leading-order merged Monte-Carlo predictions with up to nine jets in the final state. The parton-level event samples generated in this manner correspond to an integrated luminosity of 3ab-1 and are made publicly available for future phenomenological studies.