The high-lying 6^6Li levels at excitation energy around 21 MeV

The $^3$H+$^3$He cluster structure in $^6$Li was investigated by the $^3$H($\alpha$,$^3$H $^3$He)n kinematically complete experiment at the incident energy $E_\alpha$ = 67.2 MeV. We have observed two resonances at $E_x^*$ = 21.30 and 21.90 MeV which are consistent with the $^3$He($^3$H, $\gamma$)$^6$Li analysis in the Ajzenberg-Selove compilation. Our data are compared with the previous experimental data and the RGM and CSRGM calculations.Comment: 12 pages, 6 figures. Accepted for publication in J. Phys. Soc. Jp

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

Sub-barrier interaction of deuterons with 58,62Ni, 124Sn nuclei

Section IV. Nuclear Reactions Theor

Sub-barrier interaction of deuterons with 58,62Ni, 124Sn nuclei

Section IV. Nuclear Reactions Theor

Deuteron and triton decays of 5He resonances in the reaction 7Li(d, α)5H

The processes of excitation and decay of high excited 5He resonances into the d + t channel have been studied in the reaction 7Li(d, α)5He* at the energy of deuteron beam Ed = 37 MeV. In the inclusive spectra of α-particles in addition to the contributions of well known 5He resonances, the high excited states with excitation energies Ex ~ 19 and Ex > 20 MeV were observed. Cluster decay of these resonances was also identified in αd- and αt-coincidence spectra. For the first time, the decay into the d + t channel was observed for 5He resonances with Ex = 22 and 26 MeV. The determined resonance energy and width are partly agreed with the R-matrix analysis of data obtained at the study of d + 3H and n + 4He binary reactions. The possible Coulomb effects in three-particle channels of reaction 7Li(d, α)5He* are also analyzed for different conditions of observation of high excited 5He resonances

Deuterons interaction with nuclei 208Pb at sub-barrier energies

The sub-barrier interaction of deuterons with 208Pb nuclei has been experimentally studied. Considerable difference of measured elastic cross sections from Rutherford ones and from theoretical calculations that take into account the processes of deuteron polarizability and breakup in the Coulomb field of 208Pb nucleus was revealed. Energy proton spectra from (d, p) reactions have been also analyzed. It was shown that the process of neutron transfer occurs with essentially bigger probability than Coulomb breakup of deuterons