Observation of radio emissions from electron beams using an ice target

To observe high energy cosmogenic neutrinos above 50 PeV, the large neutrino telescope ARA is being built at the South Pole. The ARA telescope detects neutrinos by observing radio signals by the Askaryan effect. We performed an experiment using 40 MeV electron beams of the Telescope Array Electron L...

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Bibliographic Details
Published in:EPJ Web of Conferences
Main Authors: Mase Keiichi, Ikeda Daisuke, Ishihara Aya, Sagawa Hiroyuki, Shibata Tatsunobu, Fukushima Masaki, Yamamoto Tokonatsu, Yoshida Shigeru, Gaïor Romain, Hanson Kael, Matthews John N., Meures Thomas, Shin Bokkyun, Thomson Gordon, de Vries Krijn
Format: Article in Journal/Newspaper
Language:English
Published: EDP Sciences 2019
Subjects:
Physics
QC1-999
South Pole
South pole
Online Access:https://doi.org/10.1051/epjconf/201921602010
https://doaj.org/article/76c05815da494195929c0d0d0f34594d
Description
Summary:To observe high energy cosmogenic neutrinos above 50 PeV, the large neutrino telescope ARA is being built at the South Pole. The ARA telescope detects neutrinos by observing radio signals by the Askaryan effect. We performed an experiment using 40 MeV electron beams of the Telescope Array Electron Light Source to verify the understanding of the Askaryan emission as well as the detector responses used in the ARA experiment. Clear coherent polarized radio signals were observed with and without an ice target. We found that the observed radio signals are consistent with simulation, showing that our understanding of the radio emissions and the detector responses are within the systematic uncertainties of the ARAcalTA experiment which is at the level of 30%.

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