Fragment Composition in Central Heavy-Ion Collisions

Abstract

Charge, mass and isotopic distributions of fragments formed in the central collisions of neutron poor and neutron rich elements ¹¹²Sn + ¹¹²Sn and ¹²⁴Sn + ¹²⁴Sn have been theoretically calculated and compared to the experimental data. Influence of surface and symmetry terms on charge and isotopic distributions, at low density freeze-out were investigated.  We show that significant reduction of the symmetry term coefficient leads to better reproduction of the isotopic distributions, while the surface term effect is negligible. This is in agreement with our previous findings obtained from the interpretation of both central and peripheral heavy ion collisions.

Keywords

• central collisions,fragment yield,multifragmentation,symmetry energy

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Abstract

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Keywords

• central collisions,fragment yield,multifragmentation,symmetry energy

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