Long-term monitoring of the ANTARES optical module efficiencies using 40K decays in sea water

Albert, A.; André, Michel; Anghinolfi, Marco

doi:10.1140/epjc/s10052-018-6132-2

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Albert, A.

André, Michel

Anghinolfi, Marco

Document typeArticle

Defense date2018-08-01

PublisherSpringer

Rights accessOpen Access

Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain

Abstract

Cherenkov light induced by radioactive decay products is one of the major sources of background light for deep-sea neutrino telescopes such as ANTARES. These decays are at the same time a powerful calibration source. Using data collected by the ANTARES neutrino telescope from mid 2008 to 2017, the time evolution of the photon detection efficiency of optical modules is studied. A modest loss of only 20% in 9 years is observed. The relative time calibration between adjacent modules is derived as well.

CitationAlbert, A., Andre, M., Anghinolfi, M. Long-term monitoring of the ANTARES optical module efficiencies using 40K decays in sea water. "European physical journal C", 1 Agost 2018, vol. 78, núm. 669.

URIhttp://hdl.handle.net/2117/120950

DOI10.1140/epjc/s10052-018-6132-2

ISSN1434-6044

Publisher versionhttps://link.springer.com/content/pdf/10.1140/epjc/s10052-018-6132-2

Other identifiershttps://arxiv.org/pdf/1805.08675.pdf

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