Measurement Of 8b Solar Neutrinos In The Sno+ Water Phase And A Model Of Vacuum-Enhanced Neutrino Mixing

  • Marzec, Eric
Publication date
January 2019
Publisher
ScholarlyCommons

Abstract

This thesis describes two seperate results in the study of solar neutrinos. The first is a measurement of the $\ce{^{8}B}$ solar neutrino flux using a 69.2\,kt-day dataset acquired with the SNO+ detector during its water commissioning phase. Using an energy range of 5\,MeV to 15\,MeV, fits of the solar neutrino event direction yielded an observed flux of $2.53^{+0.31}_{-0.28}$(stat.)$^{+0.13}_{-0.10}$(syst.)$\times10^6$\,cm$^{-2}$s$^{-1}$, assuming no neutrino oscillations. This flux is consistent with standard matter enhanced neutrino oscillations and measurements done by other experiments. At energies above 6\,MeV the dataset is an extremely pure sample of solar neutrino elastic scattering events, allowing an accurate measurement with rel...

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