Pion and kaon production in central Pb + Pb collisions at 20-A and 30-A-GeV: Evidence for the onset of deconfinement

Collaboration
Oct, 2007
12 pages
Published in:
  • Phys.Rev.C 77 (2008) 024903
e-Print:
Experiments:

Citations per year

200720122017202220250102030
Abstract: (arXiv)
Results on charged pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV are presented and compared to data at lower and higher energies. A rapid change of the energy dependence is observed around 30A GeV for the yields of pions and kaons as well as for the shape of the transverse mass spectra. The change is compatible with the prediction that the threshold for production of a state of deconfined matter at the early stage of the collisions is located at low SPS energies.
Note:
  • 12 pages, 8 figures
  • 25.75.-q
  • scattering: heavy ion
  • lead
  • central region
  • pi: hadroproduction
  • K: hadroproduction
  • rapidity spectrum
  • yield: (K pi)
  • mass spectrum: transverse
  • energy dependence