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Sensibilité du télescope ANTARES au flux diffus de neutrinos galactiques

Abstract : The ANTARES european collaboration builds an underwater neutrinos telescope which will be deployed in the Mediterranean by 2500m depth. This detector consists of a three-dimensional network of 900 photomultipliers which detects the Tcherenkov light produced in water by muons created from the interaction of neutrinos in the Earth.
Cosmic rays are confined in the Galaxy and interact with the interstellar matter producing charged pions which decay into neutrinos. The observation of the sky with high energy neutrinos (> 100 GeV) could open a new window on the Galaxy, in particular, the detection of these neutrinos may make it possible to directly observe the dense parts of the Galaxy.
In this work, corresponding fluxes have been calculated using a simulation program GALPROP, for several models, constrained by various gamma and cosmic rays observations.
The expected sensitivity of the Antares detector to these models was reviewed, as well as a first estimation of the performances of what would give a future km3 scale detector.
A shape recognition algorithm was also developed: it would permit to highlight the structures of the Galaxy in the optimistic case which the number of events detected would be sufficient.
This work shows that ANTARES has an insufficient size for observing the galactic plane. It was also demonstrated that a new generation of neutrino telescope having an effective area at least 40 times larger will be needed to detect the hardest spectrum model and put limits on the other models.
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Contributor : Fabrice Jouvenot <>
Submitted on : Wednesday, January 11, 2006 - 12:29:19 PM
Last modification on : Monday, February 10, 2020 - 6:12:47 PM
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  • HAL Id : tel-00011345, version 1



Fabrice Jouvenot. Sensibilité du télescope ANTARES au flux diffus de neutrinos galactiques. Cosmologie et astrophysique extra-galactique [astro-ph.CO]. Université Paris-Diderot - Paris VII, 2005. Français. ⟨tel-00011345⟩



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