45 citations · 246 across the 22 of their papers we have counts for
14 papers · 1 filter
Impact of tensor-rank components of chiral three-nucleon forces on the single-particle structure of calcium isotopes
Tokuro Fukui, Giovanni De Gregorio, Angela Gargano +2
Background: Chiral three-nucleon forces (3NFs) play a key role in the microscopic description of nuclear shell evolution. A recent work introduced an irreducible tensor decompositi…
Solution of the Equation-of-Motion Phonon Method eigenvalue problems on the D-Wave quantum annealer
C. De Lucia, A. Martone, F. A. D'Aniello +7
The solution of large-scale eigenvalue problems is crucial in nuclear many-body theory, where Hamiltonian matrices often reach extremely large dimensions. Quantum computing opens n…
The renormalization of the shell-model neutrinoless double-beta decay operator starting from effective field theory at leading order
L. Coraggio, G. De Gregorio, S. L. Lyu +1
In this work, we approach for the first time the task to perform a shell-model calculation of the matrix element for the neutrinoless double-beta decay, within a fully-consistent f…
Uncovering the mechanism of chiral three-nucleon force in driving spin-orbit splitting
Tokuro Fukui, Giovanni De Gregorio, Angela Gargano
The three-nucleon force (3NF) is crucial in shaping the shell structure of atomic nuclei, particularly impacting the enhancement of spin-orbit (SO) splitting, especially in nuclei…
Study of forbidden decays within the realistic shell model
G. De Gregorio, R. Mancino, L. Coraggio +1
For the first time, half-lives and energy spectra of forbidden decays are calculated within the realistic shell model. Namely, we approach this issue starting from a realistic…
The renormalization of the shell-model GT operator starting from effective field theory for nuclear systems
L. Coraggio, N. Itaco, G. De Gregorio +5
For the first time, we approach in this work the problem of the renormalization of the Gamow-Teller decay operator for nuclear shell-model calculations by way of many-body perturba…
The role of three-nucleon potentials within the shell model: past and present
L. Coraggio, G. De Gregorio, T. Fukui +4
We survey the impact of nuclear three-body forces on structure properties of nuclei within the shell model. It has long been acknowledged, since the seminal works of Zuker and cowo…
Self-consistent many-body approach to the electroproduction of hypernuclei
P. Bydžovský, D. Denisova, D. Petrellis +5
The electroproduction of selected - and -shell hypernuclei was studied within a many-body approach using realistic interactions between the constituent baryons. The cross se…
Comparative analysis of formalisms and performances of three different beyond mean-field approaches
František Knapp, Panagiota Papakonstantinou, Petr Veselý +3
We investigate the differences and analogies between the equation of motion phonon method (EMPM) and second Tamm-Dancoff and random-phase approximations (STDA and SRPA) paying spec…
Shell-model calculation of Mo double- decay
L. Coraggio, N. Itaco, G. De Gregorio +3
For the first time, the calculation of the nuclear matrix element of the double- decay of Mo, with and without the emission of two neutrinos, is performed in the framewo…
Microscopic multiphonon approach to nuclei with a valence hole in the oxygen region
Giovanni De Gregorio, Frantisek Knapp, Nicola Lo Iudice +1
An equation of motion phonon method, developed for even nuclei and recently extended to odd systems with a valence particle, is formulated in the hole-phonon coupling scheme and ap…
Effect of a realistic three-body force on the spectra of medium-mass hypernuclei
Petr Vesely, Giovanni De Gregorio, Jan Pokorny
We adopt the Hartree-Fock (HF) method in the proton-neutron- (p-n-) formalism and the nucleon- Tamm-Dancoff Approximation (N TDA) to study the energy spectra of medium-…
Dipole response in 208Pb within a self-consistent multiphonon approach
F. Knapp, N. Lo Iudice, P. Vesely +3
Background: The electric dipole strength detected around the particle threshold and commonly associated to the pygmy dipole resonance offers a unique information on neutron skin an…
A self-consistent study of multipole response in neutron-rich nuclei using a modified realistic potential
D. Bianco, F. Knapp, N. Lo Iudice +4
The multipole response of neutron rich O and Sn isotopes is computed in Tamm-Dancoff and random-phase approximations using the canonical Hartree-Fock-Bogoliubov quasi-particle basi…