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

分类： 物理学 >> 核物理学 提交时间： 2016-09-13

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

摘要： 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\%/E(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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