Determine Energy Nonlinearity and Resolution of $e^{\pm }$ and $\gamma$ in Liquid Scintillator Detectors by A Universal Energy Response Model

Abstract

Energy nonlinearity and resolution in liquid scintillator (LS) detectors are correlated and particle-dependent. A unified energy response model for liquid scintillator detectors has been presented in details. This model has advanced a data-driven approach to calibrate the particle-dependent energy response, using both the monoenergetic $\gamma$-ray sources and the continuous $\beta$ spectra of ${}^{12}\mathrm{B}$ and Michel $e^{-}$ induced by cosmic muons. Monte Carlo studies have demonstrated the effectiveness and robustness of the proposed model, in particular, the positron energy resolution can be extracted in the absence of positron sources. This work will provide a feasible approach of simultaneous calibration of energy nonlinearity and resolution for the running and future LS detectors.

13 pages, 11 figures

References in corpus (4)

• Experimental Requirements to Determine the Neutrino Mass Hierarchy Using Reactor Neutrinos
• Scintillation decay time and pulse shape discrimination in oxygenated and deoxygenated solutions of linear alkylbenzene for the SNO+ experiment
• Michel decay spectrum for a muon bound to a nucleus
• Improving the energy uniformity for large liquid scintillator detectors

Cited by in corpus (2)

• A ROOT based detector geometry and event visualization system for JUNO-TAO
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