77 citations · 121 across the 4 of their papers we have counts for
6 papers
Effective operators within the ab initio no-core shell model
Ionel Stetcu, Bruce R. Barrett, Petr Navratil +1
We implement an effective operator formalism for general one- and two-body operators, obtaining results consistent with the no-core shell model (NCSM) wave functions. The Argonne V…
Shortcuts to nuclear structure: lessons in Hartree-Fock, RPA, and the no-core shell model
Calvin W. Johnson, Ionel Stetcu
While the no-core shell model is a state-of-the-art microscopic approach to low-energy nuclear structure, its intense computational requirements lead us to consider time-honored ap…
Electromagnetic transitions with effective operators
Ionel Stetcu, Bruce R. Barrett, Petr Navratil +1
In the no-core shell model formalism we compute effective one- and two-body operators, using the Lee-Suzuki procedure within the two-body cluster approximation. We evaluate the val…
Gamow-Teller transitions and deformation in the proton-neutron random phase approximation
Ionel Stetcu, Calvin W. Johnson
We investigate reliability of Gamow-Teller transition strengths computed in the proton-neutron random phase approximation, comparing with exact results from diagonalization in full…
Full-folding optical potential for preequilibrium nucleon scattering at low energies
M. Avrigeanu, A. N. Antonov, H. Lenske +1
The real part of the optical potential for the nucleon-nucleus scattering at lower energies (E_i<100MeV) has been calculated including nucleonic and mesonic form factors by a doubl…
Quantum-Mechanical Analysis of Single-Particle Level Density
I. Stetcu
A quantum-mechanical calculation of the single-particle level (s.p.l.) density is carried on by using the connection with the single-particle Green's function. The relation…