Nuclear superfluidity for antimagnetic rotation in105Cd and106Cd

Abstract

The effects of nuclear superfluidity on antimagnetic rotation bands in 105 Cd and 106 Cd are investigated by the cranked shell model with the pairing correlations and the blocking effects treated by a particle-number conserving method. The experimental moments of inertia and the reduced B(E2) transition values are excellently reproduced. The nuclear superfluidity is essential to reproduce the experimental moments of inertia. The two-shears-like mechanism for the antimagnetic rotation is investigated by examining the shears angle, i.e., the closing of the two proton hole angular momenta, and its sensitive dependence on the nuclear superfluidity is revealed.

Rotational properties of nuclei aroundNo254investigated using a spectroscopic-quality Skyrme energy density functional

“…Theoretical calculations in the nobelium region have been limited to various mean-field models, which can be divided into two large categories: those based on the microscopicmacroscopic model [7][8][9][10][11][12], and those using self-consistent approaches [13]. The latter used non-relativistic zero-range Skyrme [14][15][16][17] or finite-range Gogny [18][19][20] forces as well as relativistic Lagrangians [21][22][23][24][25].…”

Rotation and alignment of high-jorbitals in transfermium nuclei

“…Then, H CSM is diagonalized in a sufficiently large Cranked Many-Particle Configuration (CMPC) space to obtain the yrast and low-lying eigenstates. Instead of the usual single-particle level truncation in common shell-model calculations, a cranked many-particle configuration truncation (Fock space truncation) is adopted which is crucial to make the PNC calculations for low-lying excited states both workable and sufficiently accurate [9,10] . The eigenstate of H CSM is expressed as:…”

Investigation of the high-spin rotational properties of the proton emitter 113 Cs using a particle-number conserving method

“…So the particle-number is conserved and the Pauli blocking effects are treated exactly. The PNC-CSM has already been used successfully for describing the odd-even differences in MOI's [29], the identical bands [30][31][32][33], the nonadditivity in MOI's [34][35][36], the nuclear pairing phase transition [37], the high-spin rotational bands in the rareearth [38][39][40][41][42][43][44][45], the actinide and superheavy nuclei [46][47][48][49][50], and the nuclear antimagnetic rotation [51]. Note that the PNC scheme has been implanted both in relativistic and nonrelativistic mean field models [52,53] and the total-Routhian-surface method with the WoodsSaxon potential [54,55].…”