Spectroscopic study of light scattering in linear alkylbenzene for liquid scintillator neutrino detectors

Abstract

We has set up a light scattering spectrometer to study the depolarization of light scattering in linear alkylbenzene. From the scattering spectra it can be unambiguously shown that the depolarized part of light scattering belongs to Rayleigh scattering. The additional depolarized Rayleigh scattering can make the effective transparency of linear alkylbenzene much better than it was expected. Therefore sufficient scintillation photons can transmit through the large liquid scintillator detector of JUNO. Our study is crucial to achieving the unprecedented energy resolution 3\%/$\sqrt{E(\mathrm{MeV})}$ for JUNO experiment to determine the neutrino mass hierarchy. The spectroscopic method can also be used to judge the attribution of the depolarization of other organic solvents used in neutrino experiments.

6 pages, 5 figures

References in corpus (6)

• Observation of electron-antineutrino disappearance at Daya Bay
• A side-by-side comparison of Daya Bay antineutrino detectors
• Overview of the Jiangmen Underground Neutrino Observatory (JUNO)
• Rayleigh scattering of linear alkylbenzene in large liquid scintillator detectors
• Measurement of the fluorescence quantum yield of bis-MSB
• Rayleigh scattering and depolarization ratio in linear alkylbenzene

Cited by in corpus (4)

• Slow Liquid Scintillator Candidates for MeV-scale Neutrino Experiments
• A new method of energy reconstruction for large spherical liquid scintillator detectors
• Measurements of Rayleigh Ratios in Linear Alkylbenzene
• A Monte Carlo Method for Rayleigh Scattering in Liquid Detectors