Production of the most neutron-deficient Zn isotopes by projectile fragmentation of Kr-78
PHYSICAL REVIEW C(2021)
Abstract
The cross sections for the production of three most neutron-deficient zinc isotopes, Zn54-56, in the projectile fragmentation of Kr-78 at 345 MeV/nucleon on a beryllium target, were measured. Although the results are smaller by over an order of magnitude from those obtained with a Ni-58 beam at 75 MeV/nucleon on a nickel target, the rates of reaction products are found to be larger in the case of high-energy fragmentation of Kr-78. The experimental cross sections for the most neutron-deficient isotopes of even-Z nuclei between zinc and krypton were analyzed in the framework of the abrasion-ablation model. A very good agreement with the data was found when the nuclear masses predicted by a particular variant of the Hartree-Fock-Bogoliubov mass model were used. The prospects for the observation of more exotic isotopes in this region are discussed in context of 2p radioactivity.
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Key words
Neutron-rich Nuclides,Neutron Activation Analysis
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