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

Research output: Contribution to journalArticle

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(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.

Details

Authors
  • IG Bearden
  • H Boggild
  • J Boissevain
  • 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
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
JournalPhysical Review C (Nuclear Physics)
Volume66
Issue number4
Publication statusPublished - 2002
Publication categoryResearch
Peer-reviewedYes