A search for periodic modulations of the solar neutrino flux in Super-Kamiokande-I

TL;DR

This study used Super-Kamiokande-I data to search for periodic variations in solar neutrino flux but found no significant periodic signals.

Contribution

It applied the Lomb test to high-precision solar neutrino data to search for periodic modulations, demonstrating the absence of detectable periodicity within the data.

Findings

No significant periodicity detected in solar neutrino flux

The data is consistent with statistical fluctuations

Method demonstrates sensitivity to short-term variations

Abstract

A search for periodic modulations of the solar neutrino flux was performed using the Super-Kamiokande-I data taken from May 31st, 1996 to July 15th, 2001. The detector's capability of measuring the exact time of events, combined with a relatively high yield of solar neutrino events, allows a search for short-time variations in the observed flux. We employed the Lomb test to look for periodic modulations of the observed solar neutrino flux. The obtained periodogram is consistent with statistical fluctuation and no significant periodicity was found.