A Computing and Detector Simulation Framework for the HIBEAM/NNBAR Experimental Program at the ESS
J. Barrow, G. Brooijmans, J.I.M. Damian, D. DiJulio, K. Dunne, M., Frost, E. Golubeva, Y. Kamyshkov, T. Kittelmann, E. Klinkby, Z. K\'okai, J., Makkinje, B. Meirose, D. Milstead, A. Nepomuceno, A. Oskarsson, K. Ramic, N., Rizzi, V. Santoro, S. Silverstein, A. Takibayev
TL;DR
This paper presents a comprehensive simulation framework combining various computational tools to support the HIBEAM/NNBAR experiment at the ESS, aiming to detect baryon number violation through neutron-antineutron conversion.
Contribution
It introduces an integrated simulation platform that combines neutron flux predictions, signal/background modeling, and detector response for the HIBEAM/NNBAR experiment.
Findings
Simulation framework effectively models neutron flux and interactions.
Integrated software enables detailed detector response analysis.
Supports experiment design and data analysis planning.
Abstract
The HIBEAM/NNBAR program is a proposed two-stage experiment at the European Spallation Source focusing on searches for baryon number violation via processes in which neutrons convert to antineutrons. This paper outlines the computing and detector simulation framework for the HIBEAM/NNBAR program. The simulation is based on predictions of neutron flux and neutronics together with signal and background generation. A range of diverse simulation packages are incorporated, including Monte Carlo transport codes, neutron ray-tracing simulation packages, and detector simulation software. The common simulation package in which these elements are interfaced together is discussed. Data management plans and triggers are also described.
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