Year: 2005
Type: conference-paper
Abstract: Angular distributions of charged particles produced in Pb-Pb collisions at the CERN SPS have been measured by the NA50 experiment. Measurements have been performed with a silicon microstrip detector at two different beam energies (40 and 158 GeV/nucleon) and over a wide impact parameter (centrality) range. The centrality of the collision has been evaluated both by neutral transverse energy released in the interaction and by spectator nucleons energy (zero degree energy). The charged particle density at midrapidity shows a linear dependence on the number of participating nucleons at both beam energies. The particle density per participant pair and its √ S dependence are also studied.
Authors: B Alessandro, C Alexa, R Arnaldi, M Atayan, C Baglin, A Baldit, M Bedjidian, S Beolè, V Boldea, P Bordalo, S R Borenstein, G Borges, A Bussière, L Capelli, C Castanier, J Castor, B Chaurand, B Cheynis, E Chiavassa, C Cicaló, T Claudino, M P Comets, S Constantinescu, P Cortese, J Cruz, A DeFalco, N DeMarco, G Dellacasa, A Devaux, S Dita, O Drapier, B Espagnon, J Fargeix, P Force, M Gallio, Y K Gavrilov, C Gerschel, P Giubellino, M B Golubeva, M Gonin, A A Grigorian, S Grigorian, J Y Grossiord, F F Guber, A Guichard, H Gulkanyan, R Hokobyan, R Haroutunian, M Idzik, D Jouan, T L Karavitcheva, L Kluberg, A B Kurepin, Y Le Bornec, C Lourenço, P Macciotta, M Mac Cormick, A Marzari-Chiesa, M Masera, A Masoni, M Monteno, A Musso, P Petiau, A Piccotti, J R Pizzi, W L Prado da Silva, F Prino, G Puddu, C Quintans, L Ramello, S Ramos, P Rato Mendes, L Riccati, A Romana, H Santos, P Saturnini, E Scalas, E Scomparin, S Serci, R Shahoyan, F Sigaudo, M Sitta, P Sonderegger, X Tarrago, N S Topilskaya, G L Usai, E Vercellin, L Villatte, N Willis, T Wu
Institutions: Università degli Studi del Piemonte Orientale “Amedeo Avogadro”, Istituto Nazionale di Fisica Nucleare, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, A. Alikhanyan National Laboratory, Centre National de la Recherche Scientifique, Laboratoire d’Annecy de Physique des Particules, Institut National de Physique Nucléaire et de Physique des Particules, Lyon 1 Université, LIP - Laboratory of Instrumentation and Experimental Particle Physics, École Polytechnique, Laboratoire Leprince-Ringuet, University of Cagliari, Istituto Nazionale di Fisica Nucleare, Sezione di Cagliari, Institut de Physique Nucléaire d’Orsay, Institute for Nuclear Research, European Organization for Nuclear Research
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2018248309