Backgrounds for Fast Simulation $\mathbf{e^+ e^-}$ Collider Studies at $\mathbf{\sqrt{s}=91,250,350,500}$ GeV

TL;DR

This paper provides high-statistics Standard Model background simulations for proposed $e^+ e^-$ colliders at various energies, using MG5_aMC@NLO and fast detector simulation tools, facilitating future collider studies.

Contribution

It introduces comprehensive background simulation samples at multiple energies for $e^+ e^-$ colliders, comparing different simulation tools to support future experimental planning.

Findings

Generated high-statistics background samples at 91, 250, 350, 500 GeV.

Compared MG5_aMC@NLO samples with Whizard simulations.

Validated the simulation approach for collider background studies.

Abstract

Various proposals for a new $e^+ e^-$ collider operating below 1 TeV are now under consideration by the worlwide High Energy Physics community. Among these are the International Linear Collider and the Circular Electron Positron Collider. We describe high statistics Standard Model background simulation samples generated with MG5_aMC@NLO for $e^+e^-$ collider studies at $\sqrt{s}=91,250,350,500$ GeV. Fast detector simulation is performed with Delphes and DSiD, the detector card for the SiD detector. The samples are compared with other simulation samples generated with Whizard.