Search for ν_τ interactions with the nuclear emulsion films of the OPERA experiment
arXiv:1305.3168 · doi:10.1142/9789814436830_0025
Abstract
The OPERA experiment aims at measuring the ν_μ -> ν_τ oscillation through the ν_τ appearance in an almost pure ν_μ beam (CNGS). For the direct identification of the short-lived τ lepton, produced in ν_τ CC interactions, a micrometric detection resolution is needed. Therefore the OPERA detector makes use of nuclear emulsion films, the highest spatial resolution tracking device, combined with lead plates in an emulsion cloud chamber (ECC) structure called 'brick'. In this paper the nuclear emulsion analysis chain is reported; the strategy and the algorithms set up will be described together with their performances.
arXiv comment4 pages, 1 figure. Proceedings of the 15th Lomonosov Conference on Elementary Particle Physics, 18-24 August 2011, Moscow (Russia)