2016/06/30 by Jonathan H. Davis · 1 citation
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Electron #Electron scattering #Neutrino #Neutrino Physics Research #Neutrino detector #Neutrino oscillation #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Physics #RADIUS #Scattering #Solar core #Solar neutrino #Super-Kamiokande #astro-ph.SR #hep-ex #hep-ph
paper · pdf · doi:10.1103/physrevlett.117.211101
published as Phys. Rev. Lett. 117, 211101 (2016) · 5 pages, 2 figures. Matches version accepted to PRL. Improved 2D analysis and results discussion
arxiv created 2016/10/31 · openalex publication_date 2016/11/15 · arxiv updated 2016/11/16 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We quantify the amount of data needed in order to measure the size and position of the 8B neutrino production region within the solar core, for experiments looking at elastic scattering between electrons and solar neutrinos. The directions of the electrons immediately after scattering are strongly correlated with the incident directions of the neutrinos; however, this is degraded significantly by the subsequent scattering of these electrons in the detector medium. We generate distributions of such electrons for different neutrino production profiles, and use a maximum likelihood analysis to make projections for future experimental sensitivity. We find that with approximately 20 years worth of data the Super Kamiokande experiment could constrain the central radius of the shell in which 8B neutrinos are produced to be less than 0.22 of the total solar radius at 95% confidence.