40 citations
5 papers · 2 filters
The relation between the photonuclear E1 sum rule and the effective orbital g-factor
W. Bentz, A. Arima
The connection between the enhancement factor (1+kappa) of the photonuclear E1 sum rule and the orbital angular momentum g-factor (gl) of a bound nucleon is investigated in the fra…
General pairing interactions and pair truncation approximations for fermions in a single-j shell
Y. M. Zhao, A. Arima, J. N. Ginocchio +1
We investigate Hamiltonians with attractive interactions between pairs of fermions coupled to angular momentum J. We show that pairs with spin J are reasonable building blocks for…
Angular momentum I ground state probabilities of boson systems interacting by random interactions
Y. M. Zhao, A. Arima, N. Yoshinaga
In this paper we report our systematic calculations of angular momentum ground state probabilities () of boson systems with spin in the presence of random two-body in…
Generalization of the scheme to non-yrast levels of even-even nuclei
Y. M. Zhao, A. Arima
In this paper we present the systematics of excitation energies for even-even nuclei in two regions: the 50Z66, 82N104 region, and the 66Z82, 82N104 r…
Number of states with fixed angular momentum for identical fermions and bosons
Y. M. Zhao, A. Arima
We present in this paper empirical formulas for the number of angular momentum I states for three and four identical fermions or bosons. In the cases with large I we prove that the…