Neutron pick-up reactions in 18O (10 MeV/nucleon) + Ta

Abstract

The availability of new radioactive ion beams has broadened the study of nuclear reactions and nuclear structure. The main mechanism to produce the secondary beams is the fragmentation of the projectile. An alternative method for the production of the exotic nuclei is the multinucleon transfer. We measured production cross section for the B, C, N and O isotopes in the reaction 18O + Ta and the beam energy at 10 MeV/nucleon. The cross-sections were obtained by integrating the momentum distributions of the isotopes. It was shown that in deep inelastic processes the production yields of different isotopes could be well described using statistical models and could also be explained by the Qgg-systematic.

Synthesis reactions of neutron-rich isotopes of light elements

“…The fact that the isotopic distributions of reaction products strongly correlate with the N/Z ratio in the bombarding ion is also confirmed by the calculations [18]. In work [19], new isotopes 27,29,31 F were synthesized using the 48 Ca beam. Using the 56 Fe beam (670 MeV/A), the heaviest boron isotope 19 B was observed [20].…”

“…With the use of beams of radioactive nuclei, important discoveries have been made, such as the existence of a neutron halo in 11 Li [25], the observation of 10 He in the reaction with the 11 Li beam [26], etc. Thus, large prospects in the study of exotic nuclei open due to the use of secondary beams of radioactive nuclei [27].…”

Time-of-flight fission fragment spectrometer of the MAVR facility

“…When measuring the time of flight of paired fragments, experimental data are obtained in the form of two-dimensional velocity spectra. The transition from the velocity to the mass and energy of the fragments is made unambiguously using the expressions (2,3). It should be taken into account that this approach requires the use of the assumption of a two-body reaction mechanism and compliance with the condition that the mass of…”

“…Multi-parameter facilities for correlation measurements are widely used in modern experiments for studying the properties of exotic nuclei and the mechanisms of nuclear reactions with heavy ions. For this purpose, the precision magnetic spectrometer MAVR [1][2][3] was created at the Flerov Laboratory of Nuclear Reactions. It is located on the stable and radioactive heavy ion beams channel of accelerator complex DRIBS in the FLNR, JINR [4,5].…”