The one-nucleon spectroscopic characteristics of nuclei with A=7

Abstract

One-nucleon characteristics of nuclei – spectroscopic S -factors and types of their clustering are under discussion. Also the comparative analysis of the obtained proton Sp and neutron Sn spectroscopic factors are given as for the ground state and for the low excited states corresponding to the 6 Li- 6 Не residual nuclei, calculated earlier within the two-body t-model of 7 Li with the new revaluated results of theoretical calculations of spectroscopic S-factors for the channel 7 6 Li He p , obtained within the shell model and also with using of two variation methods of Monte-Carlo: VMC and GFMC (Green function Monte Carlo). For a description of virtual 3 H cluster were used: the translational and invariant shell model which corresponds to the symmetric wave functions on relative coordinates and has freely varied oscillator parameter r0, and also the "realistic" wave functions which represent the variation functions with parameters determined so that the observed form factor of 3 H was reproduced.