Kaon and pion ratio probes of jet quenching in nuclear collisions

P. Lévai, G. Papp, G. Fai, M. Gyulassy

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Non-Abelian energy loss in quark gluon plasmas is shown to lead to novel hadron ratio suppression patterns in ultrarelativistic nuclear collisions. Here we investigate pion and kaon production in pp and AA collisions in a perturbative QCD frame, suppression pattern and hadron ratios. The K-/K+ and K++ ratios are found to be most sensitive to the opacity (density) of the plasma. Experimental data indicate that the fragmentation dominated pQCD region will be reached only at higher PT; in an intermediate PT region other particle production mechanisms dominate the K/π ratios.

Original languageEnglish
Pages (from-to)459-468
Number of pages10
JournalActa Physica Hungarica New Series Heavy Ion Physics
Volume27
Issue number4
DOIs
Publication statusPublished - Dec 2006

Fingerprint

pions
quenching
retarding
kaon production
collisions
probes
particle production
opacity
fragmentation
quantum chromodynamics
energy dissipation
quarks

Keywords

  • Coalescence
  • Fragmentation
  • Heavy ion collisions
  • Quark-gluon plasma

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Kaon and pion ratio probes of jet quenching in nuclear collisions. / Lévai, P.; Papp, G.; Fai, G.; Gyulassy, M.

In: Acta Physica Hungarica New Series Heavy Ion Physics, Vol. 27, No. 4, 12.2006, p. 459-468.

Research output: Contribution to journalArticle

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