Particle production in central Pb+Pb collisions at 158A GeV/c

Summary, in English

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(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.

• Author: IG Bearden; H Boggild; J Boissevain; Peter Christiansen; L Conin; J Dodd; B Erazmus; S Esumi; CW Fabjan; D Ferenc; DE Fields; A Franz; JJ Gaardhoje; M Hamelin; AG Hansen; O Hansen; D Hardtke; H van Hecke; EB Holzer; TJ Humanic; P Hummel; BV Jacak; K Kaimi; M Kaneta; T Kohama; M Kopytine; M Leltchouk; A Ljubicic; Bengt Lörstad; N Maeda; R Malina; L Martin; A Medvedev; M Murray; H Ohnishi; G Paic; SU Pandey; F Piuz; J Pluta; V Polychronakos; M Potekhin; G Poulard; D Reichhold; A Sakaguchi; J Schmidt-Sorensen; J Simon-Gillo; W Sondheim; M Spegel; T Sugitate; JP Sullivan; Y Sumi; WJ Willis; KL Wolf; N Xu; DS Zachary
• Department/s: Particle and nuclear physics
• Publishing year: 2002
• Language: English
• Publication/Series: Physical Review C (Nuclear Physics)
• Volume: 66
• Issue: 4
• Links: http://dx.doi.org/10.1103/PhysRevC.66.044907
• Document type: Journal article
• Publisher: American Physical Society
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 0556-2813