CERN Accelerating science

Article
Report number nucl-ex/0202019
Title Particle production in central Pb + Pb collisions at 158 AGeV/c
Related titleSUPER PROTON SYNCHROTRON
Particle production in Pb + Pb collisions at the CERN SPS
Author(s) NA44 Collaboration  Show all 55 authors
Affiliation (CERN)
Publication 2002
Imprint 2002-02
Number of pages 10 p, 10
Note 10 pages, including 11 figures and 3 tables, REVTeX, submitted to Phys. Rev. C (2nd version)
In: Phys. Rev. C 66 (2002) 44907-1-9
DOI 10.1103/PhysRevC.66.044907
Subject category Nuclear Physics
Accelerator/Facility, Experiment CERN SPS ; NA44
Abstract The NA44 experiment has measured single-particle inclusive spectra for charged pions, kaons, and protons as a function of transverse mass near midrapidity in 158A GeV/c Pb+Pb collisions. From the particle mass dependence of the observed m/sub T/ distributions, we are able to deduce a value of about 120 MeV for the temperature at thermal freeze-out. From the observed ratios of the rapidity densities, we find values of the chemical potentials for light and strange quarks and a chemical freeze-out temperature of approximately 140 MeV. (34 refs).



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 Záznam vytvorený 2004-03-17, zmenený 2024-05-08


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