A particle-number conserving description of rotational correlated states
Langue
en
Article de revue
Ce document a été publié dans
Nuclear Physics A. 2010, vol. 845, p. 33-57
Elsevier
Résumé en anglais
The so-called Higher Tamm–Dancoff Approximation (HTDA) has been designed to describe microscopically correlations within a particle number conserving approach. It relies upon a truncated n particle–n hole expansion of the ...Lire la suite >
The so-called Higher Tamm–Dancoff Approximation (HTDA) has been designed to describe microscopically correlations within a particle number conserving approach. It relies upon a truncated n particle–n hole expansion of the nuclear wavefunction, where the single particle basis is optimized self-consistently by using the Skyrme mean field associated with the single-particle density matrix of the correlated wavefunction. It is applied here for the first time in a rotating frame, i.e. within a self-consistent cranking approach (cranked HTDA or CHTDA) aimed at describing the collective rotational motion in well-deformed nuclei. Moments of inertia predicted by cranked HTDA in the Yrast superdeformed (SD) bands of some Anot, vert, similar190 nuclei are compared with those deduced from experimental SD sequences as well as those produced by current cranked Hartree–Fock–Bogoliubov approaches under similar hypotheses.< Réduire
Mots clés en anglais
Microscopic mean field
Collective nuclear rotation
Pairing correlations
Nuclear shell model
Tamm–Dancoff approximation
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