Author/Authors :
Afanasiev، نويسنده , , S. and Alber، نويسنده , , T. and Appelsh?user، نويسنده , , H. and B?chler، نويسنده , , J. and Barna، نويسنده , , D. and Barnby، نويسنده , , L.S. and Bartke، نويسنده , , J. and Barton، نويسنده , , R.A. and Betev، نويسنده , , L. and Bialkowska، نويسنده , , H. and Bieser، نويسنده , , F. and Billmeier، نويسنده , , A. and Blyth، نويسنده , , C.O. and Bock، نويسنده , , R. and Bormann، نويسنده , , C. and Bracinik، نويسنده , , J.، نويسنده ,
Abstract :
The NA49 detector is a wide acceptance spectrometer for the study of hadron production in p+p, p+A, and A+A collisions at the CERN SPS. The main components are 4 large-volume TPCs for tracking and particle identification via dE/dx. TOF scintillator arrays complement particle identification. Calorimeters for transverse energy determination and triggering, a detector for centrality selection in p+A collisions, and beam definition detectors complete the set-up. A description of all detector components is given with emphasis on new technical realizations. Performance and operational experience are discussed in particular with respect to the high track density environment of central Pb+Pb collisions.
Keywords :
Hadron detector , Wide acceptance , Tracking , Particle identification , High track density
