Hadron production in central nucleus–nucleus collisions at chemical freeze-out
نویسندگان
چکیده
منابع مشابه
Hadron freeze - out conditions in high energy nuclear collisions
The purpose of the current heavy ion programs at CERN (Switzerland) and Brookhaven National Laboratory (USA) is to probe strongly interacting matter under extreme conditions, i.e. at high densities and temperatures. The central subject of these studies is the transition from the quark-gluon plasma to hadronic matter. In the early phases of ultra-relativistic heavy ion collisions, when a hot and...
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Hyperon resonances are becoming an extremely useful tool allowing the study of the properties of hadronic fireballs made in heavy ion collisions. Their yield, compared to stable particles with the same quark composition, depends on hadronization conditions. The resonance’s short lifetime makes them ideal probes of the fireball chemical freeze-out mechanisms. An analysis of resonance abundance i...
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One of the most remarkable results to emerge from heavy-ion collisions over the past two decades is the striking regularity shown by particle yields at all energies. This has led to several very successful proposals describing particle yields over a very wide range of beam energies, reaching from 1A GeV up to 200A GeV, using only one or two parameters. A systematic comparison of these proposals...
متن کاملStrange Messages: Chemical and Thermal Freeze-out in Nuclear Collisions
Thermal models are commonly used to interpret heavy-ion data on particle yields and spectra and to extract the conditions of chemical and thermal freezeout in heavy-ion collisions. I discuss the usefulness and limitations of such thermal model analyses and review the experimental and theoretical evidence for thermalization in nuclear collisions. The crucial role of correlating strangeness produ...
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Yields, rapidity and transverse momentum spectra of ∆(1232), Λ(1520), Σ±(1385) and the meson resonances K(892), Φ, ρ and f0(980) are predicted. Hadronic rescattering leads to a suppression of reconstructable resonances, especially at low p⊥. A mass shift of the ρ of 10 MeV is obtained from the microscopic simulation, due to late stage ρ formation in the cooling pion gas. Dynamics and freeze-out...
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ژورنال
عنوان ژورنال: Nuclear Physics A
سال: 2006
ISSN: 0375-9474
DOI: 10.1016/j.nuclphysa.2006.03.012