Detecting the upturn of the solar B-8 neutrino spectrum with LENA

作者：Moellenberg R^*; von Feilitzsch F; Hellgartner D; Oberauer L; Tippmann M; Winter J; Wurm M; Zimmer V

来源：Physics Letters B, 2014, 737: 251-255.

DOI：10.1016/j.physletb.2014.08.053

• Solar neutrinos

LENA (Low Energy Neutrino Astronomy) has been proposed as a next generation 50 kt liquid scintillator detector. The large target mass allows a high precision measurement of the solar B-8 neutrino spectrum, with an unprecedented energy threshold of 2 MeV. Hence, it can probe the MSW-LMA prediction for the electron neutrino survival probability in the transition region between vacuum and matter-dominated neutrino oscillations. Based on Monte Carlo simulations of the solar neutrino and the corresponding background spectra, it was found that the predicted upturn of the solar B-8 neutrino spectrum can be detected with 5 sigma significance after 5 years.

• 出版日期2014-10-7