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Volume 294 - The 3rd International Symposium on “Quest for the Origin of Particles and the Universe" (KMI2017) - Poster Presentations
Stop-$\mu$ Analysis for Atmospheric $ν_{\mu}$/$\bar ν_{\mu}$ Separation in Super-Kamiokande
M. Murase
Full text: pdf
Pre-published on: 2017 November 22
Published on: 2017 November 24
We study \(μ^+ / μ^−\) separation using decay electron information in a cosmic ray stopping muon sample in order to separate atmospheric \(ν / {\bar ν}\). We discuss event selection method defined for cosmic ray MC and data sample to identify decay electrons and apply it to atmospheric neutrino MC. Adding this selection, we obtained average muon decay time by fitting the muon decay time distribution. These results are consistent with the previously reported values. Therefore, we confirmed that this selection worked well. In future prospect, we will make distributions of the difference of log likelihood in atmospheric neutrino MC using presented results in order to develop event-by-event separation.
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