publication . Article . 2016

Statistical hadronization model analysis of hadron yields in p + Nb and Ar + KCl at SIS18 energies

Krücken, R.; HADES Collaboration; Agakishiev, G.; Arnold, O.; Bałanda, A.; Belver, D.; Belyaev, A.; Berger-Chen, J. C.; Blanco, A.; Böhmer, M.; ...
Open Access English
  • Published: 01 Jun 2016
Abstract
The HADES data from p+Nb collisions at center of mass energy of √ sNN= 3.2 GeV are analyzed by employing a statistical model. Accounting for the identified hadrons π, η, Λ, K s , ω allows a surprisingly good description of their abundances with parameters Tchem = (99 ± 11) MeV and μb = (619 ± 34) MeV, which fits well in the chemical freeze-out systematics found in heavy-ion collisions. In supplement we reanalyze our previous HADES data from Ar+KCl collisions at √ sNN= 2.6 GeV with an updated version of the statistical model. We address equilibration in heavy-ion collisions by testing two aspects: the description of yields and the regularity of freeze-out paramet...
Subjects
free text keywords: Nuclear and High Energy Physics, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], heavy ion collisions, hyperon production, matter, Proton, Quantum number, Hadron, Center of mass, Hadronization, Statistical model, Resonance (particle physics), Physics, Branching fraction, Nuclear physics
Funded by
EC| HADRONPHYSICS3
Project
HADRONPHYSICS3
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
,
FCT| PTDC/FIS/113339/2009
Project
PTDC/FIS/113339/2009
Participation in the HADES experiment
  • Funder: Fundação para a Ciência e a Tecnologia, I.P. (FCT)
  • Project Code: 113339
  • Funding stream: 5876-PPCDTI
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