Comparative Simulation of CEvNS Recoil Observables in Geant4 Using Germanium, Argon, and Xenon Targets

TL;DR

This study uses Geant4 simulations to compare CEvNS recoil observables across Germanium, Argon, and Xenon targets, providing a framework for neutrino and dark matter research.

Contribution

A custom CEvNS model was implemented in Geant4, enabling detailed analysis of recoil spectra and form factor effects for multiple detector materials.

Findings

Heavier nuclei show lower recoil energies.

Form factor suppression increases with nuclear mass.

Simulation results align with theoretical expectations.

Abstract

We present a Geant4-based simulation study of Coherent Elastic Neutrino-Nucleus Scattering (CEvNS) for three commonly used detector targets: Germanium, Argon, and Xenon. A custom CEvNS model was implemented, including differential cross sections and Helm form factors. Recoil energy spectra, angular distributions, and form factor effects were analyzed using ROOT. The results reveal expected trends: heavier nuclei lead to lower recoil energies and increased form factor suppression. This work provides a simulation framework to support future theoretical and experimental studies in neutrino physics and dark matter searches.