About excitation spectrum of 6He below the energy threshold of decay into t + t

Due to measurements and analysis as inclusive proton spectra from the 3Н(a, р) 6Не reaction (Ea = 27.2 MeV) and two-dimensional spectra of p-a coincidences from the four-body 3Н(a,рa)nn reaction (Ea = 27.2 MeV and Ea = 67.2 MeV) was observed the second excited state of 6He at energy excitation near 3 MeV

On the structure of excited states of nuclei 4He, 6He and 6Li from the 3H(α, tt)p and 3H(α, τt)n reactions

Analysis of the spectra t-t and t-t coincidences obtained for different pairs of registration angles t-particles and tritons in the kinematically complete study of three-particle 3H(a, tt)p and 3H(a, tt)n nuclear reactions at energies of alpha particles 67,2 MeV was performed. Experimentally, higher than the correspond thresholds of decay a single state with t + t structure of 6He (E* » 18,3 MeV), and the doublet structure t + t in the 6Li (E*» 21,59 MeV and E* » 21,9 MeV) was observed. At the same time energy positions and widths of 2 - 4 excited states of 4He and the ratios of their decay modes through t + p and t + n were determined

Elastic and inelastic scattering of

New angular distribution data for 7Li + 14N elastic and inelastic scattering at the energy $E_{lab}$ $({}^{14}N) = 80$ MeV (c.m. 26.7MeV) are presented. The data were analyzed within the optical model and the coupled-reaction-channels method using a channels-coupling scheme that included the 7Li and 14N inelastic scattering channels, spin reorientations of 7Li and 14N as well as most important transfer reactions. The low-energy excited states of 7Li and 14N were assumed to be collective in nature. The 7Li + 14N potential parameters as well as deformation parameters of 7Li and 14N were deduced. The 7Li + 14N potential and the data were compared with those of 6Li + 14N to observe isotopic differences. The enhanced large-angle elastic and inelastic scattering data are shown to have a large contribution from the ground-state reorientation of 7Li

Isotopic effects in the

Angular distributions of the 7Li + 10B elastic and inelastic scattering were measured at the energy E lab (10B) = 51 MeV (21 MeV c.m.). These and previously measured 7Li + 10B elastic-scattering data known at the 7Li-beam energies 24 MeV (14.1 MeV c.m.) and 39 MeV (22.94 MeV c.m.) were analyzed within the optical model and coupled-reaction channels method to determine the energy dependence of the parameters of the scattering potential and find the difference of these parameters from that of 7Li + 11B scattering. It was found that the 7Li + 11B potential parameters fail to describe the 7Li + 10B scattering data. The biggest difference is observed between the depths of the imaginary potentials that describe these scatterings