Detecting the (Quasi-)Two-Body Decays of τ Leptons in Short-Baseline Neutrino Oscillation Experiments
A. Asratyan, M. Balatz, D. Boehnlein, S. Childres, G. Davidenko, A. Dolgolenko, G. Dzyubenko, V. Kaftanov, M. Kubantsev, N. W. Reay, J. Musser, C. Rosenfeld, N. R. Stanton, R. Thun, G. S. Tzanakos, V. Verebryusov, V. Vishnyakov
Abstract
Novel detector schemes are proposed for the short-baseline neutrino experiments of next generation, aimed at exploring the large-Δm2 domain of oscillations in the appearance mode. These schemes emphasize good spectrometry for charged particles and for electromagnetic showers and efficient reconstruction of gg decays. The basic elements are a sequence of relatively thin emulsion targets, immersed in magnetic field and interspersed with electronic trackers, and a fine-grained electromagnetic calorimeter built of lead glass. These elements act as an integral whole in reconstructing the electromagnetic showers. This conceptual scheme shows good performance in identifying the τ (quasi-)two-body decays by their characteristic kinematics and in selecting the electronic decays of the τ.
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