Hadron production in heavy ion collisions: Fragmentation and recombination from a dense parton phase
By R. Fries, B. Müller, C. Nonaka, Steffen A. Bass. 2003
407 citations recorded by the source corpus.
We discuss hadron production in heavy ion collisions at the Relativistic Heavy Ion Collider (RHIC). We argue that hadrons at transverse momenta ${P}_{T}l5\phantom{\rule{0.3em}{0ex}}\text{GeV}$ are formed by recombination of partons from the dense parton phase created in central collisions at RHIC. We provide a theoretical description of the recombination process for ${P}_{T}g2\phantom{\rule{0.3em}{0ex}}\text{GeV}$. Below ${P}_{T}=2\phantom{\rule{0.3em}{0ex}}\text{GeV}$ our results smoothly match a purely statistical description. At high transverse momentum hadron production is well described in the language of perturbative QCD by the fragmentation of partons. We give numerical results for a variety of hadron spectra, ratios, and nuclear suppression factors. We also discuss the anisotropic flow ${v}_{2}$ and give results based on a flow in the parton phase. Our results are consistent with the existence of a parton phase at RHIC hadronizing at a temperature of $175\phantom{\rule{0.3em}{0ex}}\text{MeV}$ and a radial flow velocity of $0.55c$.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/3375145b51d1224aac9bb97abc7b1096fd23329b
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In Nuclear and High Energy Physics
Citations in the corpus
- Exotic Hadrons from Heavy Ion Collisions (2017, background): “It has also been extensively adopted to investigate hadron production from the quark-gluon plasma in relativistic heavy ion collisions [251, 252, 249, 253, 254].”
- Formation of dense partonic matter in relativistic nucleus–nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration (2004, background): “Recently, quark recombination has been successfully applied to describe a number of features of heavy ion collisions [219,220] (Duke model).”