Detecting the (quasi-) two-body decays of τ leptons in short-baseline neutrino oscillation experiments

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• 作者：Asratyan ; A. ; Balatz ; M. ; Boehnlein ; D. ; Childres ; S. ; Davidenko ; G. ; Dolgolenko ; A. ; Dzyubenko ; G. ; et. al.
• 关键词：14.60.Pq ; 14.60.Fg ; Neutrino oscillations ; τ ; Leptons ; Nuclear emulsion
• 刊名：Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
• 出版年：1999
• 出版时间：May, 1999
• 年：1999
• 卷：427
• 期：3
• 页码：495-509
• 全文大小：473 K

文摘

Novel detector schemes are proposed for the short-baseline neutrino experiments of next generation, aimed at exploring the large-Δm² 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 π⁰→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.