High-multiplicity neutron events registered by NEMESIS experiment
Kasztelan, M.; Enqvist, T.; Jędrzejczak, K.; Joutsenvaara, J.; Kotavaara, O.; Kuusiniemi, P.; Loo, K.K.; Orzechowski, J.; Puputti, J.; Sobkow, A.; Słupecki, M.; Szabelski, J.; Usoskin, I.; Trzaska, W.H.; Ward, T.E. (2021-07-31)
Kasztelan, M., Enqvist, T., Jędrzejczak, K., Joutsenvaara, J., Kotavaara, O., Kuusiniemi, P., Loo, K., Orzechowski, J., Puputti, J., Sobkow, A., Słupecki, M., Szabelski, J., Usoskin, I., Trzaska, W., Ward, T. (2021) High-multiplicity neutron events registered by NEMESIS experiment. Proceedings of 37th International Cosmic Ray Conference (ICRC2021), 395, 497. https://doi.org/10.22323/1.395.0497
© Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND 4.0).
https://creativecommons.org/licenses/by-nc-nd/4.0/
https://urn.fi/URN:NBN:fi-fe2021112256372
Tiivistelmä
Abstract
Neutron-induced interactions contribute to the signal-mimicking background in deep-underground searches for exotic phenomena such as Dark Matter, neutrino-less double beta decay, proton decay, etc. Apart from radioactive decay, the primary source of neutrons underground are high-energy muons from cosmic showers. While the maximum number of fission neutrons is around six and energies around oneMeV, muon-induced interactions may generate hundreds of neutrons, also with high energies. Furthermore, these processes are not yet reproduced in numerical simulations with sufficient reliability. The main goal of the NEMESIS experiment is to improve our knowledge and understanding of cosmic muon-induced neutron production in high-Z targets. NEMESIS (New Emma MEasurementS Including neutronS) is taking data at a depth of 210 m.w.e. in Callio Lab in the Pyhäsalmi mine, Finland.
Kokoelmat
- Avoin saatavuus [36548]
