Electron-pion discrimination with a scintillating fiber calorimeter

D. Acosta, S. Buontempo, L. Calõba, M. Caria, R. DeSalvo, A. Ereditato, R. Ferrari, M. Fraternali, G. Fumagalli, V. G. Goggi, F. G. Hartjes, W. Hao, Th H. Henkes, A. Henriques, L. Linssen, M. Livan, A. Maio, L. Mapelli, K. H. Meier, R. M. MondardiniB. Ong, H. P. Paar, F. Pastore, M. Pereira, L. Poggioli, G. Polesello, C. V. Scheel, J. M. Seixas, A. Simon, M. Sivertz, P. Sonderegger, M. N. Souza, Z. D. Thome, V. Vercesi, Y. Wang, R. Wigmans, C. Xu

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Abstract

We report on an experimental study of a variety of techniques for discriminating between (isolated) electrons and pions in a lead and scintillating fiber calorimeter without longitudinal segmentation. Using information from the lateral shower development, from a pre-shower detector, from the time structure of the signals, or from a combination of these we measure pion rejection factors of up to several thousand while maintaining electron efficiencies of 95% or higher.

Original languageEnglish
Pages (from-to)36-46
Number of pages11
JournalNuclear Inst. and Methods in Physics Research, A
Volume302
Issue number1
DOIs
StatePublished - Apr 1 1991

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