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Recherche d'oscillation de neutrinos dans l'expérience MINOS par l'utilisation des interactions quasi-élastiques

Abstract : The enthusiasm of the scientific community for studying oscillations of
neutrinos is equalled only by the mass of their detectors. The MINOS
experiment determines and compares the near spectrum of muonic neutrinos
from the NUMI beam to the far one, in order to measure two oscillation
parameters: $\Delta m_{23}^2$ and $sin^2(2\theta_{23})$. The spectra are
obtained by analysing the charged current interactions which difficulty lies
in identifying the interactions products (e.g. muons). An alternative method
identifying the traces of muons, bent by the magnetic field of the
detectors, and determining their energies is presented in this manuscript.
The sensitivity of the detectors is optimal for the quasi-elastic
interactions, for which a selection methode is proposed, to study their
oscillation. Even though it reduces the statistics, such a study introduces
fewer systematic errors, constituting the ideal method on the long range.
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https://tel.archives-ouvertes.fr/tel-00011451
Contributor : Simone Lantz <>
Submitted on : Tuesday, January 24, 2006 - 11:50:14 AM
Last modification on : Monday, December 14, 2020 - 9:53:44 AM
Long-term archiving on: : Monday, September 17, 2012 - 11:10:35 AM

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  • HAL Id : tel-00011451, version 1

Citation

Rodolphe Piteira. Recherche d'oscillation de neutrinos dans l'expérience MINOS par l'utilisation des interactions quasi-élastiques. Physique des Hautes Energies - Expérience [hep-ex]. Université Pierre et Marie Curie - Paris VI, 2005. Français. ⟨tel-00011451⟩

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