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- J Cleymans, H Oeschler, K Redlich, S Wheaton
- 2006

The status of the energy dependence of the chemical freeze-out temperature and chemical potential obtained in heavy ion collisions is presented. Recent proposals for chemical freeze-out conditions are compared.

THERMUS is a package of C++ classes and functions allowing statistical-thermal model analyses of particle production in relativistic heavy-ion collisions to be performed within the ROOT framework of analysis. Calculations are possible within three statistical ensembles; a grand-canonical treatment of the conserved charges B, S and Q, a fully canonical… (More)

- J Cleymans, G Hamar, P Levai, S Wheaton
- 2009

Hadron yields in high energy heavy ion collisions have been fitted and reproduced by thermal models using standard statistical distributions. These models give insight into the freeze-out conditions at varying beam energies. In this paper we investigate changes to this analysis when the statistical distributions are replaced by Tsallis distributions for… (More)

- I Kraus, J Cleymans, H Oeschler, K Redlich, S Wheaton
- 2007

The Statistical Model is recognized as a powerful approach to describe particle yields established at chemical decoupling. It has to be formulated in the canonical ensemble with respect to strangeness conservation if the number of strange particles becomes small. However, in some cases canonical suppression under the assumption of strangeness chemical… (More)

- I Kraus, H Oeschler, J Cleymans, S Wheaton
- 2006

The Statistical Model has described very successfully particle ratios measured in heavy ion collisions over a wide range of center of mass energies [1]. The extracted chemical freeze-out conditions, the temperature T and the baryon chemical potential µ B , drawn in the QCD phase diagram, appear on a common curve [2]. The extrapolation of this curve… (More)

- J Cleymans, H Oeschler, K Redlich, S Wheaton
- 2005

The recently discovered sharp peak in the K + /π + ratio in relativistic heavy-ion collisions is discussed in the framework of the thermal model. In this model a rapid change is expected as the hadronic gas undergoes a transition from a baryon-dominated to a meson-dominated gas. The transition occurs at a temperature T = 140 MeV and baryon chemical… (More)

- Iman Hassani Nia, David Weinberg, Skylar Wheaton, Emily A Weiss, Hooman Mohseni, Richard I Epstein +1 other
- 2016

Excitons, bound electron-hole pairs, possess distinct physical properties from free electrons and holes that can be employed to improve the performance of optoelectronic devices. In particular, the signatures of excitons are enhanced optical absorption and radiative emission. These characteristics could be of major benefit for the laser cooling of… (More)

- H Oeschler, J Cleymans, K Redlich, S Wheaton
- 2007

The recently discovered sharp peak in the excitation function of the K + /π + ratio around 30 A GeV in relativistic heavy-ion collisions is discussed in the framework of the Statistical Model. In this model, the freeze-out of an ideal hadron gas changes from a situation where baryons dominate to one with mainly mesons. This transition occurs at a… (More)

- J Cleymans, H Oeschler, K Redlich, S Wheaton
- 2004

The recently discovered sharp peak in the K + /π + ratio is discussed in the framework of the statistical model. In this model a rapid change is expected as the hadronic gas undergoes a transition from a baryon-dominated to a meson-dominated gas. The transition occurs at √ s N N = 8.16 GeV, temperature T = 140 MeV and baryon chemical potential µ B = 410… (More)

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