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This paper presents our recent efforts to study the momentum distributions aswell as the production of neutron-rich rare isotopes with heavy-ion beams inthe energy region of 15 MeV/nucleon. Experimental cross sections ofneutron-rich nuclides from collisions of a 86 Kr (15 MeV/nucleon) beam with 64Ni and 58 Ni targets are presented. Experimental data were obtained from theprevious work of our group with the MARS mass spectrometer at the CyclotronInstitute of Texas A&M University. On that note, detailed calculations ofyields and momentum distributions of neutron-rich projectile-like fragments arepresented for the interaction of 86 Kr with 64 Ni and compared with theaforementioned experimental data. The calculations were based on a two-stepgeneral approach: the dynamical stage of the primary interaction was describedwith the phenomenological deep-inelastic transfer model (DIT) and themicroscopic constrained molecular dynamics model (CoMD); the deexcitation stageof the excited projectile fragments was described with the statisticalbinary-decay model GEMINI. The experimental data show an enhancement in theproduction of neutron-rich isotopes close to the projectile, and interestinglyof heavier than the projectile neutron-rich nuclei. The behaviour of the datais relative to the predictions of the CoMD/GEMINI calculation. The study of themomentum distributions offers a novel route to study the reaction mechanismthat dominates the production of the fragments of interest in peripheralheavy-ion collisions at intermediate energies. In the future, we plan toanalyze experimental data that were obtained from the MAGNEX spectometer at theINFN-LNS in Catania, Italy.

Momentum Distributions of Projectile Fragments from Heavy-ion Peripheral Collisions at 15 MeV/nucleon with Emphasis on Trans-Projectile Isotopes