TY - JOUR
T1 - A study on the e/μ identification capability of a water Cerenkov detector and the atmospheric neutrino problem
AU - Kasuga, S.
AU - Hayakawa, T.
AU - Joukou, S.
AU - Kajita, T.
AU - Koshio, Y.
AU - Kumita, T.
AU - Matsumoto, K.
AU - Nakahata, M.
AU - Sakai, A.
AU - Shiozawa, M.
AU - Suzuki, Y.
AU - Totsuka, Y.
AU - Hirata, K. S.
AU - Kihara, K.
AU - Oyama, Y.
AU - Sasaki, O.
AU - Suzuki, A. T.
AU - Ishizuka, T.
AU - Miyano, K.
AU - Okazawa, H.
AU - Nishikawa, K.
AU - Fujita, K.
AU - Koga, M.
AU - Suzuki, A.
PY - 1996/5/2
Y1 - 1996/5/2
N2 - We carried out an experimental test of various characteristics of a water Čerenkov detector, especially the particle identification capability, using the 12-GeV proton synchrotron at KEK, Japan. The detector characteristics so far studied are well reproduced by the Monte Carlo simulation. Especially it is able to identify electrons and muons with mis-identification probabilities less than a few percent in the momentum range of 250-1000 MeV/c except the particle positions in the extreme edge of the detector volume. Based on the present results, the deficiency of μ-neutrinos in the atmospheric neutrinos is not an artifact caused by some peculiar detector characteristics.
AB - We carried out an experimental test of various characteristics of a water Čerenkov detector, especially the particle identification capability, using the 12-GeV proton synchrotron at KEK, Japan. The detector characteristics so far studied are well reproduced by the Monte Carlo simulation. Especially it is able to identify electrons and muons with mis-identification probabilities less than a few percent in the momentum range of 250-1000 MeV/c except the particle positions in the extreme edge of the detector volume. Based on the present results, the deficiency of μ-neutrinos in the atmospheric neutrinos is not an artifact caused by some peculiar detector characteristics.
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U2 - 10.1016/0370-2693(96)00138-4
DO - 10.1016/0370-2693(96)00138-4
M3 - Article
AN - SCOPUS:0001541761
SN - 0370-2693
VL - 374
SP - 238
EP - 242
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
IS - 1-3
ER -