The OPERA experiment at the Gran Sasso underground laboratory was designed to study nu(mu) --> nu(tau) oscillations in appearance mode in the CNGS neutrino beam. Five nu(tau) candidate events have been observed, allowing to assess the discovery of nu(mu) --> nu(tau) transitions in the atmospheric sector with a significance of 5.1sigma. In this paper the nu(tau) data analysis will be discussed, with emphasis on the background constraints obtained using dedicated data-driven control samples. Results on the search for nu(mu) --> nu(tau) oscillations, on the search for sterile neutrino mixing and on the atmospheric muon charge ratio will also be presented.
Results from the OPERA experiment at the CNGS beam / Mauri, N.*. - In: EPJ WEB OF CONFERENCES. - ISSN 2101-6275. - STAMPA. - 164:(2017), pp. 01026.1-01026.10. (Intervento presentato al convegno 5th International Conference on New Frontiers in Physics, ICNFP 2016 tenutosi a grc nel 2016) [10.1051/epjconf/201716401026].
Results from the OPERA experiment at the CNGS beam
Mauri, N.
2017
Abstract
The OPERA experiment at the Gran Sasso underground laboratory was designed to study nu(mu) --> nu(tau) oscillations in appearance mode in the CNGS neutrino beam. Five nu(tau) candidate events have been observed, allowing to assess the discovery of nu(mu) --> nu(tau) transitions in the atmospheric sector with a significance of 5.1sigma. In this paper the nu(tau) data analysis will be discussed, with emphasis on the background constraints obtained using dedicated data-driven control samples. Results on the search for nu(mu) --> nu(tau) oscillations, on the search for sterile neutrino mixing and on the atmospheric muon charge ratio will also be presented.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
