Reconstruction Algorithm for a Novel Cherenkov Scintillation Detector

Abstract

For future MeV-scale neutrino experiments, a Cherenkov scintillation detector, CSD, is of particular interest for its capability to reconstruct both energy and direction for charged particles. A type of new target material, slow liquid scintillator, SlowLS, which can be used to separate Cherenkov and scintillation lights, is one of the options for the neutrino detectors. A multi-hundred ton spherical CSD is simulated using a Geant4-based Monte Carlo software, which handles the detailed the micro processes of MeV particles and optical photons and the functions for photomultiplier, PMT, and readout electronics. Twelve SlowLS samples are simulated and studied to cover a wide range of scintillation light yields and scintillation emission time constants. Based on the detailed knowledge of the signal processes, simplified functions are constructed to predict the charge and time signals on the PMTs to fulfill an efficient reconstruction for the energy, direction, and position of charged particles. The performance of the SlowLS reconstruction, including the resulting energy, angular, and position resolution, and particle identification capability, is presented for these samples. The dependence of the performance on the scintillation light yield and emission time constants is understood. This study will be a guideline for future MeV-scale neutrino CSD design and SlowLS development for the interested physics goals.

References in corpus (4)

• Observation of electron-antineutrino disappearance at Daya Bay
• Solar neutrino measurements in Super-Kamiokande-II
• Correlated and Integrated Directionality for sub-MeV solar neutrinos in Borexino
• Ellipsometric measurements of the refractive indices of linear alkylbenzene and EJ-301 scintillators from 210 to 1000 nm

Cited by in corpus (7)

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• Optical property measurements of lithium chloride aqueous solution for a novel solar neutrino experiment
• Study of neutron production for 360 GeV cosmic muons
• The Fast Stochastic Matching Pursuit for Neutrino and Dark Matter Experiments
• A two-stage time-stretching TDC with discrete components