July 29, 2015 to August 6, 2015
World Forum
Europe/Amsterdam timezone

Self-veto approaches to reject atmospheric neutrinos in KM3NeT/ARCA

Aug 1, 2015, 3:30 PM
1h
Amazon Foyer Terrace (World Forum)

Amazon Foyer Terrace

World Forum

Churchillplein 10 2517 JW Den Haag The Netherlands
Board: 254
Poster contribution NU-EX Poster 2 DM and NU

Speaker

Thomas Heid (Universitaet Erlangen)

Description

A main objective of the future neutrino telescope KM3NeT/ARCA is the detection and measurement of extraterrestrial neutrinos. Atmospheric neutrinos, which are produced in particle showers in the Earth's upper atmosphere, represent the main background to this signal. Muon bundles which accompany downgoing atmospheric neutrinos can be used to differentiate the latter from their extraterrestrial counterparts and thus to identify cosmic neutrino signals from the upper hemisphere. The program package CORSIKA has been used for simulating extensive air showers. These particle showers contain many particle types, but beside neutrinos the only particles surviving up to the ~3000m depth of the detector are muons. A veto strategy has been developed which uses the detector signals induced by these muons. In particular these muons modify the observed topology on neutrino-induced events, with a significant effect on different reconstruction parameters. Making use of these effects, most of the downward-going atmospheric neutrinos can be rejected. The analysis methods and results will be reported in this poster.
Collaboration KM3NeT
Registration number following "ICRC2015-I/" 446

Primary author

Thomas Heid (Universitaet Erlangen)

Co-authors

Clancy James (University of Erlangen-Nuernberg) Konstantinos Pikounis (NCSR Demokritos)

Presentation materials

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