5 papers
Ab-initio No-Core Shell Model With Many-Body Forces
M. S. Fayache, J. P. Vary, B. R. Barrett +2
Working in the framework of the ab-initio no-core shell model, we derive two-body effective interactions microscopically for specific harmonic-oscillator basis spaces from the real…
Exploratory Calculations of the Effects of Higher Shell Admixtures on Static Electric Quadrupole and Magnetic Dipole Moments of Excited States
S. Aroua, L. Zamick, M. S. Fayache
Using the interaction where is a two-body spin-orbit interaction, we study the effects of varying x on the static electric quadrupole and magne…
Dependence of the Shell-Model Single-Particle Energies on Different Components of the Nucleon-Nucleon Interaction
Y. Y Sharon, M. S. Fayache, Y. Durga Devi +2
The spin-orbit splittings in the spectra of nuclei with mass numbers 5, 15 and 17 are studied within the framework of shell-model configuration mixing calculations including 2$\hba…
Anomalous Band Structure in Odd-Odd Nuclei with the Quadrupole-Quadrupole Interaction
M. S Fayache, L. Zamick
We perform shell model calculations in odd-odd nuclei using a quadrupole-quadrupole interaction and single-particle splittings chosen so as to obtain the SU(3) results. Elliott had…
Topics Concerning the Quadrupole-Quadrupole Interaction
M. S. Fayache, Y. Y. Sharon, L. Zamick
We address some properties of the quadrupole-quadrupole () interaction in nuclear studies. We first consider how to restore symmetry even though we use only coor…