Abstract
Slow liquid scintillator (water-based or oil-based) is proposed as the detection material of a few future neutrino experiments. It can be used to distinguish between scintillation and Cherenkov light. Thus neutrino detectors with it will have the directionality and particle identification for charged particles, so that a better sensitivity is expected for low energy (MeV-scale) neutrino physics, solar physics, geo-science and supernova relic neutrino search. Linear alkylbenzene (LAB) is the primary component or ingredient of these liquid scintillators. We studied all the relevant physical aspects of different combinations of LAB, 2,5-diphenyloxazole (PPO) and p-bis-(o-methylstyryl)-benzene (bis-MSB), including the light yield, time profile, emission spectrum, attenuation length of scintillation emission. The expected improvement on physics with such type of liquid scintillator will also be discussed.
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