Hadronization revisited : the dynamics behind hadro-chemical equilibrium
- The multiplicity of hadronic species created in elementary, and in nucleus-nucleus collisions, are known to be well reproduced by the statistical hadronization model, in its canonical and grand-canonical versions.To understand the origin of the implied equilibrium we revisit the hadronization models developed for e+e- annihilation to hadrons which imply spatial color pre-confinement clusters forming at the end of the pQCD evolution, which decays into on-shell hadrons/resonances. The classical ensemble description arises as a consequence of decoherence and phase space dominance during cluster formation, and decay.For A+A collisions we assume that hadronization occurs from similar singlet clusters which will overlap spatially owing to the extreme density. This is imaged in the transition to the grand-canonical ensemble.This transition sets in with increasing A and collision centrality. It can be described by a percolation model.
| Author: | Reinhard StockGND |
|---|---|
| URN: | urn:nbn:de:hebis:30-45361 |
| Parent Title (German): | Proceedings of Science, Critical Point and Onset of Deconfinement, July 3 - 6 2006, Florence, Italy |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2007/06/14 |
| Year of first Publication: | 2007 |
| Publishing Institution: | Universitätsbibliothek Johann Christian Senckenberg |
| Release Date: | 2007/06/14 |
| Note: | Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. |
| Source: | Critical Point and Onset of Deconfinement, July 3 - 6 2006, Florence, Italy. - arXiv:nucl-th/0703050v1 |
| HeBIS-PPN: | 18884645X |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Licence (German): |  Deutsches Urheberrecht |
