Abstract

The OPERA neutrino experiment in the underground Gran Sasso Laboratory (LNGS) was designed to perform the first detection of neutrino oscillations in direct appearance mode in the nu(mu) -> nu(tau) channel, the nu(tau) signature being the identification of the tau-lepton created in its charged current interaction. The hybrid apparatus consists of a large mass emulsion film/lead target complemented by electronic detectors. Placed in the LNGS, it is exposed to the high-energy long-baseline CERN Neutrino beam to Gran Sasso (CNGS) 730 km away from the neutrino source. The observation of a first nu(tau) candidate event was reported in 2010. In this paper, we discuss the result of the analysis of the data taken during the first two years of operation (2008-2009) underlining the major improvements brought to the analysis chain and to the Monte Carlo simulations. The statistical significance of the one event observed so far is then evaluated to 95%.

Autore Pugliese

• De Serio Marilisa , Simone Saverio

Tutti gli autori

• DE SERIO M.;SIMONE S.

Titolo volume/Rivista

Non Disponibile

Anno di pubblicazione

2012

ISSN

1367-2630

ISBN

Non Disponibile

Numero di citazioni Wos

20

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

27

Ultimo Aggiornamento Citazioni

Non Disponibile

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile