Simulations of Pion Production in the DAE\delta ALUS Target

TL;DR

This paper compares Monte Carlo simulations using MARS and GEANT4 to optimize the target design for the DAEδALUS neutrino experiment, aiming to improve understanding of neutrino production for CP-violation studies.

Contribution

It provides a comparative analysis of two simulation codes to enhance target design for neutrino production in the DAEδALUS experiment.

Findings

MARS and GEANT4 simulations show consistent results in target optimization.

Simulation results inform the design of efficient neutrino sources.

The study improves the accuracy of neutrino flux predictions.

Abstract

DAE\delta ALUS, the Decay At-rest Experiment for \delta_{CP} at a Laboratory for Underground Science will look for evidence of CP-violation in the neutrino sector, an ingredient in theories that seek to explain the matter/antimatter asymmetry in our universe. It will make a precision measurement of the oscillations of muon antineutrinos to electron antineutrinos using multiple neutrino sources created by low-cost compact cyclotrons. The experiment utilizes decay-at-rest neutrino beams produced by 800 MeV protons impinging a beam target of graphite and copper. Two well established Monte Carlo codes, MARS and GEANT4, have been used to optimise the design and the performance of the target. A study of the results obtained with these two codes is presented in this paper.