High energy neutrino astronomy - Astronomie neutrino à haute énergie

• Published in: Comptes Rendus Physique
• Main Authors: Hundertmark, S., Kouchner, A.
• Other Authors: AstroParticule et Cosmologie (APC (UMR_7164)), Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3), Département d'Astrophysique, de physique des Particules, de physique Nucléaire et de l'Instrumentation Associée (DAPNIA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2005
• Subjects: Neutrino astronomy; Extraterrestrial high energy neutrinos; [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]; Antarctic; Antarc*
• Online Access: http://hal.in2p3.fr/in2p3-00024996; https://doi.org/10.1016/j.crhy.2005.06.009

Traditionally photons are used to study the Universe, but, at high energies, absorption of photons renders it opaque. Neutrinos, interacting only weakly, are good alternative candidates to probe the high energy Universe over cosmological distances. Pioneering experiments utilizing the neutrino as messenger have been taking data for about a decade, but so far no source of extraterrestrial high energy neutrinos could be identified. Detection requires km3 detectors, planned to be operated deep underwater or under ice. While several projects are studying the feasibility of such a detector in the Mediterranean Sea, the construction of an Antarctic array has already started.