Electromagnetic showers reconstruction and analysis in the OPERA experiment and neutrino oscillation study by electron detection.
Identifieur interne : 000687 ( Main/Exploration ); précédent : 000686; suivant : 000688Electromagnetic showers reconstruction and analysis in the OPERA experiment and neutrino oscillation study by electron detection.
Auteurs : Florian Brunet [France]Source :
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Abstract
An international program is ongoing to measure the neutrino oscillation phenomenon and to determine the neutrino mixing matrix (MNSP) parameters. OPERA is a long-baseline neutrino experiment located at the Gran Sasso Laboratory in Italy, 730~km from CERN, downstream in the CNGS neutrino beam. The OPERA experiment is designed and optimised for a direct appearance search of νµ → ντ oscillations. It can also detect the νµ → νe oscillation driven by sin(2θ13)2 , where θ13 is the last mixing angle finally measured by the Daya Bay, RENO, and Double Chooz experiments in 2012. To observe the presence of ντ interactions in the beam, the OPERA detector is composed of calorimetric targets made of a modular structure called the "brick": a sandwich of lead plates interspaced with emulsion layers. The latter allows reconstructing tracks of charged particles produced in the neutrino interactions with a micrometric resolution. The search for the νµ → νe oscillation signal is based on the capability of identifying the electrons, rejecting background events where neutral pions are produced and keeping under control the intrinsic and dominant background source from the beam contamination. This work aims to elaborate analysis methods to improve the OPERA detector performance in the νµ → νe oscillation search.
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The search for the νµ → νe oscillation signal is based on the capability of identifying the electrons, rejecting background events where neutral pions are produced and keeping under control the intrinsic and dominant background source from the beam contamination. This work aims to elaborate analysis methods to improve the OPERA detector performance in the νµ → νe oscillation search.</div></front></TEI><affiliations><list><country><li>France</li></country></list><tree><country name="France"><noRegion><name sortKey="Brunet, Florian" sort="Brunet, Florian" uniqKey="Brunet F" first="Florian" last="Brunet">Florian Brunet</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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