Séminaires, soutenances
Séminaire: High energy neutrino detection in the Mediterranean Sea
par
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Europe/Paris
Salle 9110
Salle 9110
Description
The detection of high-energy cosmic neutrinos could provide an unambiguous proof for the identification of the sites and mechanisms that are responsible for the production of cosmic rays.
The detection technique relies on the observation of the Cerenkov light, whose emission is stimulated by the propagation in water of the charged leptons resulting from the charged current neutrino interactions in the medium surrounding the detector, that must be located deep under water or under ice, in order to screen the abundant atmospheric muon flux.
This talk will cover several aspects, mostly related to the ANTARES experiment, that is currently the largest underwater neutrino observatory in the Northern hemisphere. The main goal of a neutrino telescope is the search for high-energy neutrinos of astrophysical origin: besides the search for point-like steady sources, other topics have a relevant scientific impact, such as the search for high-energy neutrinos from unresolved sources or the search for neutrinos from transient sources. In particular the rolling search method will be described, that is the optical follow-up of golden neutrino events that is performed with large field of view telescopes. The connection between ultra high-energy cosmic rays and neutrino sources will be also discussed.