Experimental Probe to the Isospin-Dependent Properties of Hot Nuclei in Reactions 40Ar+112,124 Sn at 30 MeV/u

摘要

Protons are emitted in a greater quantity in a neutron-deficient system 40Ar+112Sn while triton emissions are greater in a neutron-rich system 40Ar+124Sn at an incident energy of 30 MeV/u. Similar to neutrons, proton emission provides a dominant contribution to neutralize the system N/Z in the decay process of the hot nuclei.The emission of hydrogen isotopes with high energies is much enhanced in the 112Sn system. The original temperature of the hot nuclei in the 40Ar+112Sn reaction is 5.8+0.3 MeV, about 0.7 MeV higher than 5.1+0.3MeV as in the 40Ar+124Sn reaction.