Submitted manuscript, 8.87 MB, PDF document
Research output: Working paper
Research output: Working paper
}
TY - UNPB
T1 - Scintillator ageing of the T2K near detectors from 2010 to 2021
AU - T2K Collaboration
AU - Collaboration, The T2K
AU - Abe, K.
AU - Akhlaq, N.
AU - Akutsu, R.
AU - Alt, C.
AU - Andreopoulos, C.
AU - Antonova, M.
AU - Aoki, S.
AU - Arihara, T.
AU - Asada, Y.
AU - Ashida, Y.
AU - Atkin, E. T.
AU - Ban, S.
AU - Barbi, M.
AU - Barker, G. J.
AU - Barr, G.
AU - Batkiewicz-Kwasniak, M.
AU - Bench, F.
AU - Berardi, V.
AU - Berns, L.
AU - Bhadra, S.
AU - Blanchet, A.
AU - Blondel, A.
AU - Bolognesi, S.
AU - Bonus, T.
AU - Bordoni, S.
AU - Bravar, A.
AU - Bronner, C.
AU - Bron, S.
AU - Bubak, A.
AU - Avanzini, M. Buizza
AU - Calabria, N. F.
AU - Cao, S.
AU - Catanesi, M. G.
AU - Cervera, A.
AU - Chakrani, J.
AU - Cherdack, D.
AU - Christodoulou, G.
AU - Cicerchia, M.
AU - Dealtry, T.
AU - Doyle, T. A.
AU - Finch, A. J.
AU - Hatzikoutelis, A.
AU - Kormos, L. L.
AU - James, M. Lamers
AU - Lamont, I.
AU - Lawe, M.
AU - O'Keeffe, H. M.
AU - Ratoff, P. N.
AU - Walsh, J. G.
AU - Xu, Yongheng
N1 - 29 pages, 18 figures. Prepared for submission to JINST
PY - 2022/10/17
Y1 - 2022/10/17
N2 - The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium for the measurement of charged particles produced in neutrino interactions at its near detector complex. Over 10 years of operation the measured light yield recorded by the scintillator based subsystems has been observed to degrade by 0.9--2.2\% per year. Extrapolation of the degradation rate through to 2040 indicates the recorded light yield should remain above the lower threshold used by the current reconstruction algorithms for all subsystems. This will allow the near detectors to continue contributing to important physics measurements during the T2K-II and Hyper-Kamiokande eras. Additionally, work to disentangle the degradation of the plastic scintillator and wavelength shifting fibres shows that the reduction in light yield can be attributed to the ageing of the plastic scintillator.
AB - The T2K experiment widely uses plastic scintillator as a target for neutrino interactions and an active medium for the measurement of charged particles produced in neutrino interactions at its near detector complex. Over 10 years of operation the measured light yield recorded by the scintillator based subsystems has been observed to degrade by 0.9--2.2\% per year. Extrapolation of the degradation rate through to 2040 indicates the recorded light yield should remain above the lower threshold used by the current reconstruction algorithms for all subsystems. This will allow the near detectors to continue contributing to important physics measurements during the T2K-II and Hyper-Kamiokande eras. Additionally, work to disentangle the degradation of the plastic scintillator and wavelength shifting fibres shows that the reduction in light yield can be attributed to the ageing of the plastic scintillator.
KW - physics.ins-det
KW - hep-ex
M3 - Working paper
BT - Scintillator ageing of the T2K near detectors from 2010 to 2021
PB - Institute of Physics
ER -