Author/Authors :
The ALICE-HMPID Group، نويسنده , , D. Cozza، نويسنده , , M. Davenport، نويسنده , , G. De Cataldo، نويسنده , , D. Di Bari، نويسنده , , A. Di Mauro، نويسنده , , D. Elia، نويسنده , , A. Franco، نويسنده , , B. Goret، نويسنده , , P. Martinengo، نويسنده , , E. Nappi، نويسنده , , G. Pai?، نويسنده , , F. Piuz، نويسنده , , F. Posa، نويسنده , , T.D. Williams and V.A. Squire، نويسنده ,
Abstract :
A high momentum particle identification detector (HMPID) covering about 5% of the ALICE central barrel region has been designed and prototyped.
The detector consists of seven RICH modules with a proximity focusing geometry, covering 12 m2. The very large density of hits on the detector (80÷90 part/m2 in the extreme cases) makes the recognition of the Cherenkov photon patterns a complex and crucial task. A study of the pattern recognition strategy based on the Hough transformation in terms of particle identification efficiency and particle contamination will be presented.
