R J Fries et al 2004 J. Phys. G: Nucl. Part. Phys. 30 S223 doi:10.1088/0954-3899/30/1/025
R J Fries1, B Müller1, C Nonaka1 and S A Bass1,2
Show affiliationsWe show that hadron production in relativistic heavy-ion collisions at transverse momenta larger than 2 GeV/c can be explained by the competition of two different hadronization mechanisms. Above 5 GeV/c hadron production can be described by fragmentation of partons that are created perturbatively. Below 5 GeV/c recombination of partons from the dense and hot fireball dominates. This can explain some of the surprising features of RHIC data such as the constant baryon-to-meson ratio of about one and the small nuclear suppression for baryons between 2 to 4 GeV/c.
25.75.Dw Particle and resonance production
24.10.Pa Thermal and statistical models
27.80.+w 190(less-than-or-equal-to)A(less-than-or-equal-to)219
Issue 1 (January 2004)
Received 27 May 2003
Published 11 December 2003
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