Etude de la production de neutrinos associés aux Sursauts Gamma dans le modèle du Boulet de Canon. Possibilité d'observation de ces neutrinos par le détecteur Antares, et étude du bruit de fond optique enregistré par le prototype d'un secteur de ligne

Abstract : Antares is a futur neutrino telescope which will be build at 40 km off the french coast (Toulon), at a 2500 m depth. The interaction of a neutrino with matter produces a muon which emits Cerenkov light while propagating in water. This light is detected with 900
PMTs distributed over 12 lines. Gamma ray bursts (GRB) are violent cosmological phenomenon observed once per day. In the Cannonball Model, bursts are produced by the interaction of a jet made of cannonballs (CB) with a supernova remnant (SNR). Forward shocks propagate in the SNR, reverse ones in the CB and neutrinos are produced at the shock fronts. An estimation of the neutrino production is given and is studied over a large parameter range. For a typical GRB, 0.002 to 0.3 $\nu_{\mu}$ cm$^2$ can be produced. Depending on the viewing angle, Antares could detect 1 to 10 $\nu_{\mu}$ per year in correlation with GRBs.
The ambiant optical background has been recorded by the Antares prototype sector line. The analysis is about the background in on the detector performance and
about the organisms activity which produces it. For example, it appears a 17.6 to 20.4 h periodicity which is compatible with the liquid masses movement imposed by the Coriolis force at the Antares latitude.
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• HAL Id : tel-00120193, version 1

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Sophie Ferry. Etude de la production de neutrinos associés aux Sursauts Gamma dans le modèle du Boulet de Canon. Possibilité d'observation de ces neutrinos par le détecteur Antares, et étude du bruit de fond optique enregistré par le prototype d'un secteur de ligne. Physique des Hautes Energies - Expérience [hep-ex]. Université Louis Pasteur - Strasbourg I, 2004. Français. ⟨tel-00120193⟩

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