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arXiv · 1504.00986

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

Xiang Zhou·Qian Liu·Junbo Han·Zhenyu Zhang·Xuan Zhang·Yayun Ding·Yangheng Zheng·Li Zhou·Jun Cao·Yifang Wang
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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.

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Xiang Zhou, Qian Liu, Junbo Han, Zhenyu Zhang, Xuan Zhang, Yayun Ding, Yangheng Zheng, Li Zhou, Jun Cao, Yifang Wang. 2015-04-16. Spectroscopic study of light scattering in linear alkylbenzene for liquid scintillator neutrino detectors. https://doi.org/10.1140/epjc%2Fs10052-015-3784-z

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