Journal Article/Report/Contribution to a conference proceedings

PUBDB-2020-00362

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png IceCube High Energy Starting Events at 7.5 Years -- New Measurements of Flux and Flavor

Stachurska, J. (Corresponding author)DESY* ; IceCube Collaboration (Collaboration Author)

2019
EDP Sciences Les Ulis

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Please use a persistent id in citations: doi:10.1051/epjconf/201920702005  doi:10.3204/PUBDB-2020-00362

Report No.: arXiv:1905.04237

Abstract: The IceCube Neutrino Observatory at the South Pole, which detects Cherenkov light from charged particles produced in neutrino interactions, firmly established the existence of an astrophysical high-energy neutrino component. Here I present IceCube’s High-Energy Starting Event sample and the new results obtained with a livetime of about 7.5 years. I will focus on the new measurement of the flavor composition performed using this sample. IceCube is directly sensitive to each neutrino flavor via the single cascade, track and double cascade event topologies, the latter being the topology produced in tauneutrino interactions above an energy threshold of ~100 TeV. A measurement of the flavor ratio on Earth can provide important constraints on sources and production mechanisms within the standard model, and also constrain various beyond-standard-model processes.

Keyword(s): talk: Dubna 2018/10/02 ; neutrino: flavor ; neutrino: interaction ; flavor: ratio ; energy: threshold ; energy: high ; radiation: Cherenkov ; IceCube ; topology ; cascade ; charged particle ; observatory ; tracks ; neutrino: flux ; experimental results

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Contributing Institute(s):

1. Neutrinoteleskop (ZEU-ICE)

Research Program(s):

1. 613 - Matter and Radiation from the Universe (POF3-613) (POF3-613)

Experiment(s):

1. IceCube South Pole Neutrino Observatory

Appears in the scientific report 2019

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Database coverage:
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