Solar Neutrino Measurement at SK-III
The Super-Kamiokande Collaboration: B.S. Yang, et al

TL;DR
This paper reports on the solar neutrino measurements at Super-Kamiokande-III, highlighting improvements in detector performance, background reduction, and systematic error reduction, leading to more precise solar neutrino data collection.
Contribution
It introduces enhanced hardware and software for SK-III, achieving lower energy thresholds and reduced systematic errors in solar neutrino measurements.
Findings
Reduced low energy backgrounds compared to earlier periods
Nearly halved systematic errors
Achieved 4.5 MeV energy threshold for analysis
Abstract
The full Super-Kamiokande-III data-taking period, which ran from August of 2006 through August of 2008, yielded 298 live days worth of solar neutrino data with a lower total energy threshold of 4.5 MeV. During this period we made many improvements to the experiment's hardware and software, with particular emphasis on its water purification system and Monte Carlo simulations. As a result of these efforts, we have significantly reduced the low energy backgrounds as compared to earlier periods of detector operation, cut the systematic errors by nearly a factor of two, and achieved a 4.5 MeV energy threshold for the solar neutrino analysis. In this presentation, I will present the preliminary SK-III solar neutrino measurement results.
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Taxonomy
TopicsNeutrino Physics Research · Astrophysics and Cosmic Phenomena · Dark Matter and Cosmic Phenomena
