Köln 2025 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 5: Instrumentation II

HK 5.2: Talk

Monday, March 10, 2025, 15:15–15:30, SR Exp1B Chemie

Monte Carlo simulation framework for the neutron lifetime experiment τSPECT — •Niklas Pfeifer for the tauSPECT collaboration — Institute of Physics, Johannes Gutenberg University Mainz, 55099 Mainz, Germany

The τSPECT experiment aims to measure the free neutron lifetime with an uncertainty goal of sub second by storing ultra-cold neutrons (UCNs) in a fully magnetic bottle using the spin flip technique. Monte Calo simulations of neutron dynamics in the experiment is a key element to study and understand systematic effects, reduce uncertainties and improve the experimental design. Based on different software packages specialized on Monte Carlo simulations, we developed a simulation framework to accurately simulate the production, transport and capture of UCNs in τSPECT.
This talk will summarize the different sub systems of the simulation framework, latest results and challenges of simulations for τSPECT as well as possible future optimizations and performance improvements.

Keywords: Ultracold neutrons; Monte Carlo Simulation; Neutron lifetime