Detecting the (quasi-) two-body decays of [formula omitted] leptons in short-baseline neutrino oscillation experiments

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 1999-05, Vol.427 (3), p.495-509
• Main Authors: Asratyan, A., Balatz, M., Boehnlein, D., Childres, S., Davidenko, G., Dolgolenko, A., Dzyubenko, G., Kaftanov, V., Kubantsev, M., Reay, N.W., Musser, J., Rosenfeld, C., Stanton, N.R., Thun, R., Tzanakos, G.S., Verebryusov, V., Vishnyakov, V.
• Format: Article
• Language: English
• Subjects: [formula omitted] Leptons; Neutrino oscillations; Nuclear emulsion
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/S0168-9002(99)00038-8

Novel detector schemes are proposed for the short-baseline neutrino experiments of next generation, aimed at exploring the large- Δm 2 domain of ν μ →ν τ oscillations in the appearance mode. These schemes emphasize good spectrometry for charged particles and for electromagnetic showers and efficient reconstruction of π 0→ γγ 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 .