Low-m_t charged pion asymmetry enhancement from hadronization of QGP

Abstract

We show that in sudden hadronization of QGP a non-equilibrium value of the pion phase space occupancy parameter gamma_q>1 is expected in order to accommodate the entropy excess in QGP and the process of gluon fragmentation. When gamma_q is near to its maximum allowed value, pion overabundance is shown to arise at low $m_{\perp }$, 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 160-200AGeV Pb- and S- induced reactions.

6 pages incl. 4 figures, v2 extends discussion of other explanations of the effect, adds references

References in corpus (1)

• Expected Production of Strange Baryons and Antibaryons in Baryon-Poor QGP

Cited by in corpus (6)

• Multi-boson effects in Bose-Einstein interferometry and the multiplicity distribution
• Multiplicity Fluctuations in Limited Segments of Momentum Space in Statistical Models
• Hadron Resonances and Phase Threshold in Heavy Ion Collisions
• Delta-33 medium mass modification and pion spectra
• Multiplicity Fluctuations and Correlations in Limited Momentum Space Bins in Relativistic Gases
• Statistical hadronization phenomenology in heavy ion collisions at SPS and RHIC energies