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10 papers · 2 filters
Beyond-mean-field theories with zero-range effective interactions. A way to handle the ultraviolet divergence
K. Moghrabi, M. Grasso, G. Colò +1
Zero-range effective interactions are commonly used in nuclear physics and in other domains to describe many-body systems within the mean-field model. If they are used within a bey…
Nuclear energy functional with a surface-peaked effective mass: Global properties
Anthea Francesca Fantina, Jérôme Margueron, Paola Donati +1
A correction to the nuclear functional is proposed in order to improve the density of states around the Fermi surface. The induced effect of this correction is to produce a surface…
Symmetry Energy Effects on Fusion Cross Sections
C. Rizzo, V. Baran, M. Colonna +2
We investigate the reaction path followed by Heavy Ion Collisions with exotic nuclear beams at low energies. We will focus on the interplay between reaction mechanisms, fusion vs.…
Effect of the tensor force on the charge-exchange spin-dipole excitations of 208Pb
C. L. Bai, H. Q. Zhang, H. Sagawa +3
The charge-exchange spin-dipole (SD) excitations of 208Pb are studied by using a fully self-consistent Skyrme Hartree-Fock plus Random Phase Approximation (HF+RPA) formalism which…
Effect of pairing correlations on incompressibility and symmetry energy in nuclear matter and finite nuclei
E. Khan, J. Margueron, G. Colo +2
The role of superfluidity in the incompressibility and in the symmetry energy is studied in nuclear matter and finite nuclei. Several pairing interactions are used: surface, mixed…
Constraints on the symmetry energy and on neutron skins from the pygmy resonances in 68Ni and 132Sn
Andrea Carbone, Gianluca Coló, Angela Bracco +4
Correlations between the behavior of the nuclear symmetry energy, the neutron skins, and the percentage of energy-weighted sum rule (EWSR) exhausted by the Pygmy Dipole Resonance (…
Finite-size effects and collective vibrations in the inner crust of neutron stars
S. Baroni, A. Pastore, F. Raimondi +3
We study the linear response of the inner crust of neutron stars within the Random Phase Approximation, employing a Skyrme-type interaction as effective interaction. We adopt the W…
Linear response of light deformed nuclei investigated by self-consistent quasiparticle random-phase-approximation
C. Losa, A. Pastore, T. Dossing +2
We present a calculation of the properties of vibrational states in deformed, axially--symmetric even--even nuclei, within the framework of a fully self--consistent Quasparticle Ra…
Nuclear single-particle states: dynamical shell model and energy density functional methods
P. F. Bortignon, G. Colò, H. Sagawa
We discuss different approaches to the problem of reproducing the observed features of nuclear single-particle (s.p.) spectra. In particular, we analyze the dominant energy peaks,…
Difference between stable and exotic nuclei: medium polarization effects
R. A. Broglia, G. Potel, F. Barranco +1
The bare NN-potential, parametrized so as to reproduce the nuclear phase shifts leads to a sizable Cooper pair binding energy in nuclei along the stability valley. It is a much deb…