European Physical Journal C: Particles and Fields (Aug 2018)

Long-term monitoring of the ANTARES optical module efficiencies using $$^{40}\mathrm{{K}}$$ 40K decays in sea water

  • A. Albert,
  • M. André,
  • M. Anghinolfi,
  • G. Anton,
  • M. Ardid,
  • J.-J. Aubert,
  • J. Aublin,
  • T. Avgitas,
  • B. Baret,
  • J. Barrios-Martí,
  • S. Basa,
  • B. Belhorma,
  • V. Bertin,
  • S. Biagi,
  • R. Bormuth,
  • J. Boumaaza,
  • S. Bourret,
  • M. C. Bouwhuis,
  • H. Brânzaş,
  • R. Bruijn,
  • J. Brunner,
  • J. Busto,
  • A. Capone,
  • L. Caramete,
  • J. Carr,
  • S. Celli,
  • M. Chabab,
  • R. Cherkaoui El Moursli,
  • T. Chiarusi,
  • M. Circella,
  • J. A. B. Coelho,
  • A. Coleiro,
  • M. Colomer,
  • R. Coniglione,
  • H. Costantini,
  • P. Coyle,
  • A. Creusot,
  • A. F. Díaz,
  • A. Deschamps,
  • C. Distefano,
  • I. Di Palma,
  • A. Domi,
  • C. Donzaud,
  • D. Dornic,
  • D. Drouhin,
  • T. Eberl,
  • I. El Bojaddaini,
  • N. El Khayati,
  • D. Elsässer,
  • A. Enzenhöfer,
  • A. Ettahiri,
  • F. Fassi,
  • I. Felis,
  • G. Ferrara,
  • L. A. Fusco,
  • P. Gay,
  • H. Glotin,
  • T. Grégoire,
  • R. Gracia Ruiz,
  • K. Graf,
  • S. Hallmann,
  • H. van Haren,
  • A. J. Heijboer,
  • Y. Hello,
  • J. J. Hernández-Rey,
  • J. Hößl,
  • J. Hofestädt,
  • G. Illuminati,
  • C. W. James,
  • M. de Jong,
  • M. Jongen,
  • M. Kadler,
  • O. Kalekin,
  • U. Katz,
  • A. Kouchner,
  • M. Kreter,
  • I. Kreykenbohm,
  • V. Kulikovskiy,
  • C. Lachaud,
  • R. Lahmann,
  • D. Lefèvre,
  • E. Leonora,
  • G. Levi,
  • M. Lotze,
  • S. Loucatos,
  • M. Marcelin,
  • A. Margiotta,
  • A. Marinelli,
  • J. A. Martínez-Mora,
  • R. Mele,
  • K. Melis,
  • P. Migliozzi,
  • A. Moussa,
  • S. Navas,
  • E. Nezri,
  • A. Nuñez,
  • M. Organokov,
  • G. E. Păvălaş,
  • C. Pellegrino,
  • P. Piattelli,
  • V. Popa,
  • T. Pradier,
  • L. Quinn,
  • C. Racca,
  • N. Randazzo,
  • G. Riccobene,
  • A. Sánchez-Losa,
  • M. Saldaña,
  • I. Salvadori,
  • D. F. E. Samtleben,
  • M. Sanguineti,
  • P. Sapienza,
  • F. Schüssler,
  • M. Spurio,
  • Th. Stolarczyk,
  • M. Taiuti,
  • Y. Tayalati,
  • A. Trovato,
  • B. Vallage,
  • V. Van Elewyck,
  • F. Versari,
  • D. Vivolo,
  • J. Wilms,
  • D. Zaborov,
  • J. D. Zornoza,
  • J. Zúñiga

DOI
https://doi.org/10.1140/epjc/s10052-018-6132-2
Journal volume & issue
Vol. 78, no. 8
pp. 1 – 8

Abstract

Read online

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.