Journal Article/Contribution to a conference proceedings

FZJ-2021-00824

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Data selection strategy for solar neutrino analysis with Borexino

Caprioli, S. ; Ghiano, C. ; Re, A. ; Redchuk, M. (Corresponding author)FZJ* ; BOREXINO Collaboration

2020
IOP Publ.87703 Bristol

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Please use a persistent id in citations: http://hdl.handle.net/2128/27069  doi:10.1088/1742-6596/1342/1/012110

Abstract: The Borexino collaboration has recently released the first simultaneous measurement of the interaction rates of pp, 7Be and pep solar neutrinos. This result was made possible by the unprecedented low background of the scintillator during Phase-II, together with new data analysis techniques. We present the data selection strategy of the Borexino solar neutrino analysis: we describe how we select the neutrino-like scintillation events according to event-based cuts which eliminate most of the external and cosmogenic backgrounds. We describe also how the spatial distribution of events and a β+/β− pulse shape discrimination variable are used in a multivariate fit approach to additionally constrain the residual cosmogenic 11C and external backgrounds.

Keyword(s): neutrino: solar ; background: low ; Borexino ; scintillation counter ; data analysis method ; shape analysis ; carbon: nuclide

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Contributing Institute(s):

1. Experimentelle Hadrondynamik (IKP-2)

Research Program(s):

1. 612 - Cosmic Matter in the Laboratory (POF3-612) (POF3-612)

Appears in the scientific report 2020

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Database coverage:
; ; ; SCOPUS

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