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Seasonal Modulation of the $^7$Be Solar Neutrino Rate in Borexino
- Publication Year :
- 2017
-
Abstract
- We detected the seasonal modulation of the $^7$Be neutrino interaction rate with the Borexino detector at the Laboratori Nazionali del Gran Sasso in Italy. The period, amplitude, and phase of the observed time evolution of the signal are consistent with its solar origin, and the absence of an annual modulation is rejected at 99.99\% C.L. The data are analyzed using three methods: the sinusoidal fit, the Lomb-Scargle and the Empirical Mode Decomposition techniques, which all yield results in excellent agreement.<br />Comment: 11 palese, 13 figures
- Subjects :
- High Energy Physics - Experiment
Physics - Instrumentation and Detectors
Subjects
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1701.07970
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1016/j.astropartphys.2017.04.004