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Theses

Détection de rayons gamma cosmiques et potentiel de découvertes avec le spectromètre AMS-02

Abstract : Yet designed to measure charged component of the cosmic rays, the foreseen Alpha Magnetic Spectrometer (AMS-02) could also release gamma-ray studies, in the energy range from GeV to TeV, using the tracker system, for gamma-rays converted in e+e- pair, and the electromagnetic calorimeter. In the first part of the thesis are described the calibrations and the performances of the engineering model of the calorimeter, obtained from the analysis of data taken during a test-beam performed at CERN in July 2002. In the second part of the thesis, the AMS-02 discovery potential for gamma-astrophysics is presented. While exposure maps of the gamma-sky are computed for one year of data taking with the gamma-detectors, the acceptance of the calorimeter is obtained from Monte-Carlo simulations. The AMS-02 potential is then estimated for signals from the Vela pulsar and for some supersymmetric signals from the Galactic Center.
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https://tel.archives-ouvertes.fr/tel-00008770
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Submitted on : Monday, March 14, 2005 - 2:39:08 PM
Last modification on : Friday, November 6, 2020 - 3:26:52 AM
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  • HAL Id : tel-00008770, version 1

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Loic Girard. Détection de rayons gamma cosmiques et potentiel de découvertes avec le spectromètre AMS-02. Physique des Hautes Energies - Expérience [hep-ex]. Université de Savoie, 2004. Français. ⟨tel-00008770⟩

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