Electron identification and hadron discrimination using Cherenkov radiation in air and SiPMs
hep-ex
/ Authors
A. Alici, F. Carnesecchi, B. R. Achari, N. Agrawal, P. Antonioli, S. Arcelli, F. Bellini, S. Bufalino, D. Cavazza, L. Cifarelli
and 36 more authors
F. Cindolo, G. Clai, M. Colocci, F. Ercolessi, G. Fabbri, D. Falchieri, C. Ferrero, A. Ficorella, U. Follo, M. Garbini, S. Geminiani, G. Gioachin, A. Gola, D. Hatzifotiadou, A. Khuntia, A. Margotti, G. Malfattore, R. Nania, F. Noferini, L. Parellada-Monreal, M. Penna, O. Pinazza, R. Preghenella, M. Razza
/ Abstract
This paper presents a method to identify electrons using the Cherenkov light emitted when a charged particle travels in air and photons are detected with a Silicon PhotoMultiplier (SiPM). The analysis is based on a photon-counting approach using SPAD cells and uses data collected during a test beam at CERN PS. The results are well described by a simple Monte Carlo simulation, which further demonstrates that a very good electron identification and a strong pion/hadron rejection could be obtained over a wide momentum range.