Thermal strangeness and charm in QGP

Johann Rafelski, Jean Letessier, Ahmed Tounsi

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Using QCD methods we re-evaluate strangeness and charm production in a thermal QGP fireball. QCD renormalization group is employed to evaluate running of the parameters αs(μ) and ms(μ). We resum even-αs Feynman diagrams involving two particles in initial and final states. We obtain thermal relaxation times in a simple dynamical description of the fireball and we use these results to study two generic strangeness observables as function of collision energy: specific (per baryon) strangeness yield {Mathematical expression}, and phase space occupancy γs. From these two quantities, knowing the hadronization process in rough detail, we obtain the final state strange particle abundances.

Original languageEnglish (US)
Pages (from-to)181-192
Number of pages12
JournalActa Physica Hungarica New Series Heavy Ion Physics
Volume4
Issue number1-4
DOIs
StatePublished - Dec 1996

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strangeness
fireballs
quantum chromodynamics
Feynman diagrams
baryons
relaxation time
collisions
energy

ASJC Scopus subject areas

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

Cite this

Thermal strangeness and charm in QGP. / Rafelski, Johann; Letessier, Jean; Tounsi, Ahmed.

In: Acta Physica Hungarica New Series Heavy Ion Physics, Vol. 4, No. 1-4, 12.1996, p. 181-192.

Research output: Contribution to journalArticle

Rafelski, Johann ; Letessier, Jean ; Tounsi, Ahmed. / Thermal strangeness and charm in QGP. In: Acta Physica Hungarica New Series Heavy Ion Physics. 1996 ; Vol. 4, No. 1-4. pp. 181-192.
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