Enhanced production of neutron-rich rare isotopes in peripheral collisions at Fermi energies. Academic Article uri icon

abstract

  • A large enhancement in the production of neutron-rich projectile residues is observed in the reactions of a 25 MeV/nucleon 86Kr beam with the neutron-rich 124Sn and 64Ni targets relative to the predictions of the EPAX parametrization of high-energy fragmentation, as well as relative to the reaction with the less neutron-rich 112Sn target. A hybrid model based on a deep-inelastic transfer (DIT) code followed by a statistical deexcitation code accounts for part of the observed large cross sections. The DIT simulation indicates that the production of neutron-rich nuclides in these reactions is associated with peripheral nucleon exchange in which the neutron skins of the neutron-rich 124Sn and 64Ni target nuclei may play an important role. From a practical viewpoint, such reactions offer a novel synthetic avenue to access extremely neutron-rich rare isotopes towards the neutron-drip line.

published proceedings

  • Phys Rev Lett

author list (cited authors)

  • Souliotis, G. A., Veselsky, M., Chubarian, G., Trache, L., Keksis, A., Martin, E., Shetty, D. V., & Yennello, S. J.

citation count

  • 48

complete list of authors

  • Souliotis, GA||Veselsky, M||Chubarian, G||Trache, L||Keksis, A||Martin, E||Shetty, DV||Yennello, SJ

publication date

  • July 2003