Projected quasiparticle calculations of ^{119}Sn, ^{121}Sn, and ^{123}Sn using realistic interactions
Abstract
We have performed quasiparticle calculations for the tin isotopes ^{119}Sn, ^{121}Sn and ^{123}Sn, using realistic effective interactions derived from the Paris and BonnA NN potentials. A numberprojected one and threequasiparticle formalism in the ( g _{{7}/{2}}, d _{{5}/{2}}, d _{{3}/{2}}, s _{{1}/{2}}, h _{{11}/{2}}) model space is employed. We have used a foldeddiagram method to derive the corresponding modelspace effective interaction, starting from the Gmatrix elements derived from the above NN potentials. The Gmatrix Pauliexclusion operator Q_{2}, specified by the shellmodel orbitals ( n_{1}, n_{2}, n_{3}) = (11, 21, 36), has been treated accurately. An almost pure ( h _{{11}/{2}}) ^{3} threequasiparticle structure for the high spin states from J = {17}/{2 ^{}} to {27}/{2 ^{}} of the above nuclei has been observed. With practically no parameter adjustment, our calculated energies are in very good agreement with available experimental data.
 Publication:

Physics Letters B
 Pub Date:
 February 1996
 DOI:
 10.1016/03702693(96)006454
 Bibcode:
 1996PhLB..384...20L