publication . Article . Other literature type . Preprint . 2018

Centrality determination of Au + Au collisions at 1.23A GeV with HADES

B. Kardan; C. Franco; Oliver Werner Arnold; Kirill Lapidus; E. Epple; P. Fonte; K.N. Nowakowski; A. Lebedev; O. Petukhov; P. Bordalo; ...
Open Access English
  • Published: 24 May 2018
The centrality determination for Au + Au collisions at 1.23A GeV, as measured with HADES at the GSI-SIS18, is described. In order to extract collision geometry related quantities, such as the average impact parameter or number of participating nucleons, a Glauber Monte Carlo approach is employed. For the application of this model to collisions at this relatively low centre-of-mass energy of $ \sqrt{s_{{\rm NN}}} = 2.42$ GeV special investigations were performed. As a result a well defined procedure to determine centrality classes for ongoing analyses of heavy-ion data is established.
free text keywords: 1.23 GeV/nucleon 2.42 GeV-cms/nucleon, nucleon, numerical calculations, experimental methods, geometry, resistive plate chamber, time-of-flight, HADES, impact parameter, Glauber, heavy ion: scattering, Monte Carlo, [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, heavy ion, * Automatic Keywords *, [ PHYS.NEXP ] Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear and High Energy Physics, Nuclear fusion, Hadron, Physics, Time of flight, Centrality, Monte Carlo method, Nuclear physics
Funded by
Study of Strongly Interacting Matter
  • Funder: European Commission (EC)
  • Project Code: 283286
  • Funding stream: FP7 | SP4 | INFRA
FCT| 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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