Pseudorapidity distributions of charged particles in Pb-Pb collisions at super proton synchrotron energies from the NA50 experiment

M Idzik ,N Willis,S Serci,P Petiau,C Baglin,A De Falco,N Constans,A Baldit,P Bordalo,M Atayan,C Quintans,P Force,O Drapier,V Boldea,R Hakobyan,E Chiavassa,Y Le Bornee,D Jouan,A Devaux,J Fargeix,A Musso,S Grigorian,A Piccotti,M Bedjidian,A Romana,F Prino,M Mac Cormick,G Dellacasa,W L Prado Da Silva,P Saturnini,G Puddu,C Gerschel,C Castanier,L Villatte,M Masera,S Ramos,G L Usai,J Castor,A Guichard,B Chaurand,M P Comets,T Claudino,N De Marco,M Gallio,I Chevrot,P Sonderegger,F Sigaudo,X Tarrago,L Kluberg,L Riccati,P Macciotta,R Haroutunian,M Gonin,S Silva ,Y.k Gavrilov ,N Topilskaya ,J.r Pizzi ,L Ducroux ,A Bussière ,C Alexa ,F.f Guber ,M Sitta ,B Cheynis ,P Rato Mendes ,M Golubeva ,S Diţă ,B Alessandro ,A Marzari‐Chiesa ,R Shahoyan ,C Cicalò ,E Scomparin ,M.c Abreu ,G Borges ,S Beolè ,H Gulkanyan ,A.b Kurepin ,A.a Grigorian ,J.‐Y Grossiord ,E Vercellin ,T.l Karavitcheva ,B Espagnon ,S Constantinescu ,R Arnaldi ,C Lourenço ,P Cortese ,H Santos ,M Monteno ,L Ramello ,Enrico Scalas ,P Giubellino ,A Masoni ,L Capelli

doi:10.1007/bf02707031

Pseudorapidity distributions of charged particles in Pb-Pb collisions at super proton synchrotron energies from the NA50 experiment

M Idzik , N Willis + Show 90 more

https://doi.org/10.1007/bf02707031

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Journal: Pramana	Publication Date: May 1, 2003
Citations: 1

Affiliation: University of Turin, French National Centre for Scientific Research, University of Cagliari, École Polytechnique, University of Lisbon, University of Eastern Piedmont Amadeo Avogadro, Rio de Janeiro State University, European Organization for Nuclear Research, University of Algarve

#Charged Particles In Pb-Pb Collisions #Charged Particle Pseudorapidity Distributions + Show 8 more

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Abstract

We present the measurements of charged particle pseudorapidity distributions dNch/dη performed by the NA50 experiment in Pb-Pb collisions at the CERN SPS. Measurements were done at incident energies of 40 GeV (√s = 8.77 GeV) and 158 GeV (√s = 17.3 GeV) per nucleon over a broad impact parameter range. The multiplicity distributions are studied as a function of centrality using the number of participating nucleons(Npart), or the number of binary nucleon-nucleon collisions (Ncoll). Their values at midrapidity exhibit a linear scaling withNpart at both energies. Particle yield increases approximately by a factor of 2 betweeny √s = 8.77 GeV and √s = 17.3 GeV.

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