Present status of the opera experiment for the direct observation of neutrino oscillations in the νμ → ν τ channel

Autor: G. P. Shozieev, M. S. Vladimirov, T. M. Roganova, O. G. Ryazhskaya, R. I. Enikeev, Timur Dzhatdoev, A. G. Ol’shevskii, Yu. A. Gornushkin, A. Sheshukov, A. S. Malgin, A. M. Anokhina, Natalia Polukhina, N. Yu. Agafonova, M. M. Chernyavskii, V. Nikitina, A. B. Aleksandrov, V. F. Yakushev, S. G. Dmitrievskii, Artem Chukanov, Viktor Matveev, V. G. Ryasnyi, N. I. Starkov, S. Zemskova, Dmitry V. Naumov
Rok vydání: 2011
Předmět:
Zdroj: Bulletin of the Russian Academy of Sciences: Physics. 75:423-426
ISSN: 1934-9432
1062-8738
DOI: 10.3103/s1062873811030051
Popis: The OPERA experiment (Oscillation Project with an Emulsion-Tracking Apparatus) for the direct observation of neutrino oscillations in the νμ → ντ channel has been underway at the underground laboratory in Gran Sasso since 2007. In the course of data collection, more than 3000 νμ interactions have been registered in emulsion detectors. Twenty charmed neutrino interaction candidates have been found. Multidimensional criteria have been developed in order to select ντ interactions against νμ interactions accompanied by charmed hadron production. The first results from automated PAVIKOM emulsion scanning have been obtained. We discuss the measurements of the muon charge ratio of μ+ to μ−.
Databáze: OpenAIRE
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