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Recherche des oscillations nu_mu to nu_e dans l'experience NOMAD

Abstract : The NOMAD experiment is looking for nu_mu -> nu_tau and nu_mu -> nu_e oscillations in a
predominantly nu_mu beam at the CERN SPS. Neutrino oscillations are closely related with the existence of non-zero neutrino mass and mixing between different
This document describes the search for nu_mu -> nu_e oscillations in the full NOMAD
data sample accumulated during four years of data-taking (1995-98). The search
for nu_e appearance was performed by studying the charged current (CC) interac-
tions in the NOMAD detector. The selection of nu_e CC and nu_mu CC interactions
with the help of different particle identification algorithms, as well as using the
event kinematic criteria, is described here in detail.
We show that the NOMAD experiment is sensitive to the LSND allowed re-
gion of oscillation parameters with the squared mass difference larger than
10 eV2/c4. An upper limit on the probability of nu_mu -> nu_e oscillations, based on
a fraction of the NOMAD data, is given.
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Submitted on : Monday, February 4, 2002 - 11:24:39 AM
Last modification on : Friday, November 6, 2020 - 3:29:55 AM
Long-term archiving on: : Friday, April 2, 2010 - 7:51:10 PM


  • HAL Id : tel-00001083, version 1



Alexei Krasnoperov. Recherche des oscillations nu_mu to nu_e dans l'experience NOMAD. Physique des Hautes Energies - Expérience [hep-ex]. Université de Savoie, 2000. Français. ⟨tel-00001083⟩



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