Symmetry energy dependence of light fragment production in heavy-ion collisions

Wolter, H. H.; Zielinska-Pfabe, M.; Decowski, P. und Colonna, M. (2015): Symmetry energy dependence of light fragment production in heavy-ion collisions. In: Iwm-Ec 2014 - International Workshop On Multi Facets of Eos and Clustering, Bd. 88, 00021

Abstract

The pre-equilibrium light cluster emission in low to intermediate energy heavy ion collisions is a way to obtain information about the density and momentum dependence of the nuclear symmetry potential, i.e. about the stiffness of the symmetry energy and the neutron-proton effective mass splitting. We study the n/p and t/3He ratios as a function of the energy of the emitted particles and find that these allow to disentangle these two aspects of the symmetry energy. The t/3He ratios are found to carry similar information as the n/p ratios, making this a promising option for experimental investigations. More n-rich systems enhance the sensitivity to the symmetry energy, while double ratios between n-rich and n-poor systems tend to reduce it.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Physik
• Themengebiete: 500 Naturwissenschaften und Mathematik > 530 Physik
• ISSN: 2100-014X
• Sprache: Englisch