https://doi.org/10.1051/epjconf/20146603097
Symmetry Energy Dependence of Light Fragment Production in Heavy Ion Collisions
1 Fac.of Physics, University of Munich, D-85748 Garching, Germany
2 Smith College, Northampton, Mass. 01063, USA
3 INFN, Laboratori Nazionali del Sud, I-95123, Catania, Italy
4 LPC Caen, Univ. de Caen, F-14050 Caen, France
5 GANIL, F-14076 Cedex, France
a e-mail: hermann.wolter@lmu.de
Published online: 20 March 2014
We study the pre-equilibrium light cluster emission in low to intermediate energy heavy ion collisions in transport simulations as a means to obtain information about the density and momentum dependence of the nuclear symmetry potential, i.e. about the asy-stiffness and the neutron-proton effective mass splitting of the symmetry energy. We find that the study of n/p and t/3He ratios as a function of the energy of the emitted particles may allow to disentangle these two behaviors The t/3He ratios appear 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. A preliminary comparison to experimental data for the 136,124Xe +124,112Sn systems is also shown.
© Owned by the authors, published by EDP Sciences, 2014
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
