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11 papers · 2 filters
Volution of nuclear spin-orbit splittings with Skyrme functional SAMi-T
Shihang Shen, Gianluca Colò, Xavier Roca-Maza
A new Skyrme functional has been developed with tensor term guided by ab initio relativistic Brueckner-Hartree-Fock (RBHF) studies on neutron-proton drops. Instead of extracting in…
Nuclear incompressibility from spherical and deformed nuclei
Danilo Gambacurta, Gianluca Colò, Alessandro Pastore
We present an analysis based on the deformed Quasi Particle Random Phase Approximation, on top of a deformed Hartree-Fock-Bogoliubov description of the ground state, aimed at study…
Particle-vibration coupling for giant resonances beyond the diagonal approximation
Shihang Shen, Gianluca Colò, Xavier Roca-Maza
A self-consistent particle-vibration coupling (PVC) model without diagonal approximation is presented. The diagonal approximation, that neglects completely the interaction between…
Skyrme Functional with Tensor Terms from ab initio Calculations: Results for the Spin-Orbit Splittings
Shihang Shen, Gianluca Colò, Xavier Roca-Maza
A new Skyrme functional including tensor terms is presented. The tensor terms have been determined by fitting the results of relativistic Brueckner-Hartree-Fock (RBHF) studies on n…
Harmonic potential theorem: \\extension to spin-, velocity- and density-dependent interactions
S. Zanoli, X. Roca-Maza, G. Colò +1
One of the few exact results for the description of the time-evolution of an inhomogeneous, interacting many-particle system is given by the Harmonic Potential Theorem (HPT). The r…
Coulomb Energy Density Functionals for Nuclear Systems: Recent Studies of Coulomb Exchange and Correlation Functionals
Tomoya Naito, Ryosuke Akashi, Gianluca Colò +2
The Coulomb exchange and correlation energy density functionals for electron systems are applied to nuclear systems. It is found that the exchange functionals in the generalized gr…
Double charge-exchange phonon states
X. Roca-Maza, H. Sagawa, G. Colo'
We study double charge-exchange phonon states in neutron-rich nuclei, in particular the double isobaric analog states and the double Gamow-Teller excitations, induced by the double…
Characterization of vorticity in pygmy resonances and soft-dipole modes with two-nucleon transfer reactions
R. A. Broglia, F. Barranco, G. Potel +1
The properties of the two-quasiparticle-like soft E1-modes and PDR have been and are systematically studied with the help of inelastic and electromagnetic experiments which essenti…
Nuclear excitations within microscopic EDF approaches : pairing and temperature effects on the dipole response
E. Yüksel, G. Colò, E. Khan +1
In the present work, the isovector dipole responses, both in the resonance region and in the low-energy sector, are investigated using the microscopic nuclear Energy Density Functi…
Radioactive beams and inverse kinematics: probing the quantal texture of the nuclear vacuum
F. Barranco, G. Potel, E. Vigezzi +1
The properties of the quantum electrodynamic (QED) vacuum in general, and of the nuclear vacuum (ground) state in particular are determined by virtual processes implying the excita…
Towards an ab initio covariant density functional for nuclear structure
Shihang Shen, Haozhao Liang, Wen Hui Long +2
Nuclear structure models built from phenomenological mean fields, the effective nucleon-nucleon interactions (or Lagrangians), and the realistic bare nucleon-nucleon interactions a…