Separate Chemical Freeze-Out of Strange Particles with Conservation Laws
| Autor: | A. I. Ivanytskyi, K. A. Bugaev, V. V. Sagun, Dmytro Oliinychenko |
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| Rok vydání: | 2014 |
| Předmět: |
Physics
Range (particle radiation) Conservation law Nuclear Theory High Energy Physics::Phenomenology Hadron FOS: Physical sciences General Physics and Astronomy Collision Resonance (particle physics) Nuclear Theory (nucl-th) Nuclear physics High Energy Physics - Phenomenology High Energy Physics - Phenomenology (hep-ph) High Energy Physics::Experiment Heavy ion Center of mass Nuclear Experiment |
| Zdroj: | CIÊNCIAVITAE Scopus-Elsevier |
| ISSN: | 2071-0194 2071-0186 |
| DOI: | 10.15407/ujpe59.11.1051 |
| Popis: | The Hadron Resonance Gas Model with two chemical freeze-outs, connected by conservation laws is considered. We are arguing that the chemical freeze-out of strange hadrons should occur earlier than the chemical freeze-out of non-strange hadrons. The hadron multiplicities measured in the heavy ion collisions for the center of mass energy range 2.7 - 200 GeV are described well by such a model. Based on a success of such an approach, a radical way to improve the Hadron Resonance Gas Model performance is suggested. Thus, we suggest to identify the hadronic reactions that freeze-out noticeably earlier or later that most of the others reactions (for different collision energies they may be different) and to consider a separate freeze-out for them. 9 pages, 7 figures. arXiv admin note: text overlap with arXiv:1308.3594 |
| Databáze: | OpenAIRE |
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