Determination of through-going tracks' direction by means of δ-rays in the ICARUS liquid argon time projection chamber

F. Arneodo, B. Baiboussinov, A. Badertscher, G. Battistoni, P. Benetti, E. Bernardini, A. Borio Di Tigliole, P. Brunetti, A. Bueno, E. Calligarich, M. Campanelli, C. Carpanese, D. Cavalli, F. Cavanna, P. Cennini, S. Centro, A. Cesana, D. Cline, R. Dolfini, A. FerrariA. Gigli Berzolari, C. Matthey, F. Mauri, D. Mazza, L. Mazzone, G. Meng, C. Montanari, G. Nurzia, S. Otwinowski, O. Palamara, D. Pascoli, A. Pepato, S. Petrera, L. Periale, G. Piano Mortari, A. Piazzoli, P. Picchi, F. Pietropaolo, T. Rancati, A. Rappoldi, G. L. Raselli, D. Rebuzzi, J. P. Revol, J. Rico, M. Rossella, C. Rossi, A. Rubbia, C. Rubbia, P. Sala, D. Scannicchio, F. Sergiampietri, M. Terrani, P. Torre, S. Ventura, C. Vignoli, H. Wang, J. Woo, Z. Xu

Research output: Contribution to journalArticlepeer-review


We exploited the crossing muon data, collected in the 50 1 liquid argon TPC exposed at the CERN neutrino beam in 1997, to investigate the possibility of identifying the direction of minimum ionizing particle tracks relying only on δ-rays orientation. In this note we show that simple selection criteria allow using δ-rays down to very low energy (few MeV) with high efficiency and no misidentification of their direction. The Monte Carlo prediction - two recognized δ-rays per meter of track - is very well matched by the result of the scanning of the experimental data.

Original languageEnglish (US)
Pages (from-to)42-47
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number1
StatePublished - Jul 11 2000

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation


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