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

Abstract

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 $\sqrt{s_{\mathrm{NN}}}=2.42$ 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.

References in corpus (4)

• Big-Bang Nucleosynthesis
• Glauber Modeling in High Energy Nuclear Collisions
• Title Quantum Optics and Heavy Ion Physics
• Corrections to Eikonal Approximation for Nuclear Scattering at Medium Energies

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