Poster (Other)

FZJ-2020-00413

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Analysis Strategies for the Updated Geoneutrino Measurement with Borexino

Kumaran, S. (Corresponding author)FZJ*

2019

Please use a persistent id in citations: http://hdl.handle.net/2128/24188

Abstract: Borexino, is one of the two detectors that has measured geoneutrinos, particles that carry direct information about the deep Earth. These electron antineutrinos can help us unravel details of the mantle, obtain the radiogenic heat contribution to Earth’s surface heat flux, and also give us limits to the hypothetical georeactor.Geoneutrinos are measured using the Inverse Beta Decay channel in Borexino and the latest published result in 2015 has an uncertainty of 26.2%. Thanks to the updated statistics and the various optimised selection cuts, it has been possible to reduce the uncertainty by a substantial amount. This poster will cover the details of the key improvements such as increased fiducial volume analysis, improved veto for cosmogenics, extended energy and coincidence time window, as well as a more efficient α/β discrimination technique. The highlights of the results obtained from the update will also be presented.

Keyword(s): Nuclei and Particles (1st) ; Particle Physics (2nd)

Note: On behalf of the Borexino collaboration

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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 2019

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Database coverage:

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