E. A. Kuzmin

Scattering of radioactive nuclei 6He and 3H by protons: Effects of neutron skin and halo in 6He, 8He, and 11Li

In an experimental study of 6He+p and 3H+p collisions at ∼70 A MeV, the elastic scattering angular distributions were measured and the known excited state 6He1.8∗ was observed. Comparative analysis of existing experimental data on proton elastic scattering by 4He, 6He, 6Li, 8He, 9Li, and 11Li was performed. Effects of valence neutrons were investigated using the eikonal approach. A difference between 11Li and 6,8He was found.

Democratic decay of 6Be states

Abstract Decays of the 6 Be(0 + ) and 6 Be ∗ (2 + ) states into α + p + p are investigated by measuring spectra of each decay product, as well as in a kinematically complete experiment. Data on the decay characteristics are obtained. It has been found that the decays of 6 Be(0 + ) and 6 Be ∗ (2 + ) are reduced to exotic processes characterized by specific correlations of the α + p + p particles.

The 8He and 10He spectra studied in the (t, p) reaction

The low-lying spectra of 8He and 10He nuclei were studied in the 3H(6He, p)8He and 3H(8He, p)10He transfer reactions. The 0+ ground state (g.s.) of 8He and excited states, 2+ at 3.6–3.9 MeV and (1+) at 5.3–5.5 MeV, were populated with cross sections of 200, 100–250, and 90–125 μb/sr, respectively. Some evidence for a 8He state at about 7.5 MeV was obtained. We discuss a possible nature of the nearthreshold anomaly above 2.14 MeV in 8He and relate it to the population of a 1− continuum (soft dipole excitation) with a peak value at about 3 MeV. The lowest energy group of events in the 10He spectrum was observed at ∼ 3 MeV with a cross section of ∼ 140 μb/sr. We argue that this result is consistent with the previously reported observation of 10He providing the new 10He g.s. position at about 3 MeV

Elastic and inelastic scattering of exotic nuclei

Abstract Experimental studies of 11 Li+p, 8 He+p, 6 He+p, 3 H+p, and 14 Be+p at E ∼ 65–75 A MeV are reported. The elastic scattering cross sections are measured. Effects of extended neutron distributions in 11 Li, 8 He, 6 He are investigated. Spectroscopy of 11 Li, 6 He, 14 Be is performed.

Critical temperature for the nuclear liquid gas phase transition

The charge distribution of the intermediate mass fragments produced in p

24.5 A MeV 6He+p elastic and inelastic scattering

(8.1\mathrm{GeV})+\mathrm{Au}

Evidence for simultaneous breakup in reactions with relativistic α-projectiles☆

collisions is analyzed in the framework of the statistical multifragmentation model with the critical temperature for the nuclear liquid-gas phase transition

Spectroscopy of 7He and superheavy hydrogen isotope 5H

{T}_{c}

Multifragmentation and nuclear phase transitions (liquid-fog and liquid-gas)

as a free parameter. It is found that

Nuclear multifragmentation and fission: Similarity and differences

{T}_{c}=20\ifmmode\pm\else\textpm\fi{}3\mathrm{MeV}