Discovery potential for supernova relic neutrinos with slow liquid scintillator detectors

Physics Letters B

Hanyu Wei¹  Shaomin Chen¹  Zhe Wang¹ 

[1] Key Laboratory of Particle & Radiation Imaging, Tsinghua University, Ministry of Education, Beijing 100084, China;

关键词: Supernova relic neutrino;    Slow liquid scintillator;    Separation of Cherenkov and scintillation lights;    Jinping;   

DOI  :  10.1016/j.physletb.2017.03.071

来源: DOAJ

【 摘 要 】

Detection of supernova relic neutrinos could provide key support for our current understanding of stellar and cosmological evolution, and precise measurements of these neutrinos could yield novel insights into the universe. In this paper, we studied the detection potential of supernova relic neutrinos using linear alkyl benzene (LAB) as a slow liquid scintillator. The linear alkyl benzene features good separation of Cherenkov and scintillation lights, thereby providing a new route for particle identification. We further addressed key issues in current experiments, including (1) the charged current background of atmospheric neutrinos in water Cherenkov detectors and (2) the neutral current background of atmospheric neutrinos in typical liquid scintillator detectors. A kiloton-scale LAB detector at Jinping with O(10) years of data could discover supernova relic neutrinos with a sensitivity comparable to that of large-volume water Cherenkov detectors, typical liquid scintillator detectors, and liquid argon detectors.

【 授权许可】

Unknown