The multipole dependent effects induced by tensor correlations on the charge-exchange spin-dipole (SD) modes of the light nucleus 16O are studied within a Hartree-Fock (HF) plus self-consistent random-phase approximation (RPA), using Skyrme-type interactions. The role played by the triplet-even and triplet-odd tensor terms are examined separately to explain either the softening or hardening of the excitation energies of SD modes. The unperturbed and RPA summed strengths, calculated with and without the tensor force, are discussed and compared with the results of shell-model calculations.
Spin-dipole excitations in 16O and tensor correlations / C.L. Bai, H. Sagawa, G. Colo', H.Q. Zhang, X.Z. Zhang. - In: PHYSICAL REVIEW. C, NUCLEAR PHYSICS. - ISSN 0556-2813. - 84:4(2011), pp. 044329.1-044329.6.
Spin-dipole excitations in 16O and tensor correlations
G. Colo';
2011
Abstract
The multipole dependent effects induced by tensor correlations on the charge-exchange spin-dipole (SD) modes of the light nucleus 16O are studied within a Hartree-Fock (HF) plus self-consistent random-phase approximation (RPA), using Skyrme-type interactions. The role played by the triplet-even and triplet-odd tensor terms are examined separately to explain either the softening or hardening of the excitation energies of SD modes. The unperturbed and RPA summed strengths, calculated with and without the tensor force, are discussed and compared with the results of shell-model calculations.File | Dimensione | Formato | |
---|---|---|---|
PhysRevC.84.044329.pdf
accesso riservato
Tipologia:
Publisher's version/PDF
Dimensione
524.16 kB
Formato
Adobe PDF
|
524.16 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Pubblicazioni consigliate
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.