The ASY-EOS experiment at GSI: Investigating symmetry energy at supra-saturation densities

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Abstract

The elliptic-flow ratio of neutrons with respect to protons or light complex particles in reactions of heavy-ions at pre-relativistic energies has been proposed as an observable sensitive to the strength of the symmetry term of the nuclear equation of state at supra-saturation densities. The results obtained from the existing FOPI/LAND data for 197Au+197Au collisions at 400 MeV/nucleon in comparison with the UrQMD model simulations favoured a moderately soft symmetry term, but suffer from a considerable statistical uncertainty. These results have been confirmed by an independent analysis based on the Tübingen QMD simulations. In order to obtain an improved data set for Au+Au collisions and to extend the study to other systems, a new experiment was carried out at the GSI laboratory by the ASY-EOS collaboration. The present status of the data analysis is reported © Owned by the authors, published by EDP Sciences, 2014.
Lingua originaleEnglish
pagine (da-a)03074-
Numero di pagine4
RivistaEPJ WEB OF CONFERENCES
Volume66
Stato di pubblicazionePublished - 2014

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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