The horn, the hadron mass spectrum and the QCD phase diagram - the statistical model of hadron production in central nucleus-nucleus collisions

Abstract

We present the status of the description of hadron production in central nucleus-nucleus collisions within the statistical model . The recent inclusion of very high-mass resonances and the sigma meson leads to an improved description of the data, in particular the energy dependence of the K+/pi+ ratio at SPS energies (``the horn''). The connection to the QCD phase diagram is discussed.

4 pages, 3 figures; presented at the Nucleus-Nucleus 2009 conference, Beijing, Aug. 2009

References in corpus (5)

• Thermal Hadronization and Hawking-Unruh Radiation in QCD
• The Thermal Production of Strange and Non-Strange Hadrons in e+e- Collisions
• Chemical freeze-out in ultra-relativistic heavy ion collisions at sqrt(s)_NN = 130 and 200 GeV
• The Phase Diagram of Strongly-Interacting Matter
• The QCD Phase Diagram: Expectations and Challenges

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