Solar Neutrino Physics
Solar Neutrino Physics
The SNO experiment studied the rate, energy spectrum and flavor composition of the solar neutrino flux. In 2001, SNO discovered that ~60% of the solar electron-flavor neutrinos oscillate to muon- and tau-flavor neutrinos on their journey from the sun to the SNO detector in Sudbury, Ontario, Canada (pictured above). I did my postdoctoral research on the final phase of SNO, which measured the solar Boron-8 neutrino flux to an accuracy of a few percent. I worked on the systematics analysis, and on simulating the array of neutral current detectors. SNO’s leader, Art McDonald, shared the 2015 Nobel Prize in Physics, and the collaboration was awarded the 2016 Breakthrough Prize in Fundamental Physics. Then, I realized that dark matter detectors would see solar neutrinos too! Now, I’m working on measuring the solar CNO neutrino flux events hidden in dark matter detector data, in the current DEAP-3600 and near-future DarkSide-20k experiments.
Links:
• A recent paper I wrote about how dark matter detectors can study neutrinos in new ways
• 2015 Nobel Prize Lecture on SNO by Prof. Art McDonald