Low-m⊥ π+- asymmetry enhancement from hadronization of QGP

Jean Letessier, Ahmed Tounsi, Johann Rafelski

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We show that in sudden hadronization of QGP a non-equilibrium value of the pion phase space occupancy parameter γq> 1 is expected in order to accommodate the entropy excess in QGP and the process of gluon fragmentation. When γq is near to its maximum allowed value, pion overabundance is shown to arise at low m⊥, where the charged pion asymmetry is also amplified. These effects are considered and we show that their magnitude suffices to explain pertinent experimental data obtained in 160-200 A GeV Pb- and S- induced reactions.

Original languageEnglish (US)
Pages (from-to)213-219
Number of pages7
JournalPhysics Letters B
Volume475
Issue number3-4
DOIs
StatePublished - Mar 2 2000

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pions
asymmetry
augmentation
fragmentation
entropy

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Low-m⊥ π+- asymmetry enhancement from hadronization of QGP. / Letessier, Jean; Tounsi, Ahmed; Rafelski, Johann.

In: Physics Letters B, Vol. 475, No. 3-4, 02.03.2000, p. 213-219.

Research output: Contribution to journalArticle

Letessier, Jean ; Tounsi, Ahmed ; Rafelski, Johann. / Low-m⊥ π+- asymmetry enhancement from hadronization of QGP. In: Physics Letters B. 2000 ; Vol. 475, No. 3-4. pp. 213-219.
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