Author/Authors :
Arneodo، نويسنده , , F. and Baiboussinov، نويسنده , , B. and Badertscher، نويسنده , , A. and Battistoni، نويسنده , , G. and Benetti، نويسنده , , P. and Bernardini، نويسنده , , E. and Borio di Tigliole، نويسنده , , A. H. Brunetti، نويسنده , , P. and Bueno، نويسنده , , A. and Calligarich، نويسنده , , E. and Campanelli، نويسنده , , M. and Carpanese، نويسنده , , C. and Cavalli، نويسنده , , D. and Cavanna، نويسنده , , F. an، نويسنده ,
Abstract :
We exploited the crossing muon data, collected in the 50 l liquid argon TPC exposed at the CERN neutrino beam in 1997, to investigate the possibility of identitying 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.
