ar X iv : n uc l - th / 0 40 70 86 v 1 2 3 Ju l 2 00 4 Staggering behavior of 0 + state energies in the Sp ( 4 ) pairing model

ar X iv : n uc l - th / 0 00 70 34 v 1 1 4 Ju l 2 00 0 June 2000 Annual Report for the Department of Energy : 2000 Nuclear Theory Group University of Washington

This document is a summary of the physics research carried out by the Nuclear Theory Group at the University of Washington during the last twelve-month period.

ar X iv : n uc l - th / 0 60 70 62 v 1 2 7 Ju l 2 00 6 Spin projection in the shell model Monte Carlo method and the spin distribution of nuclear level densities

We introduce spin projection methods in the shell model Monte Carlo approach and apply them to calculate the spin distribution of level densities for iron-region nuclei using the complete (pf+g9/2)shell. We compare the calculated distributions with the spin-cutoff model and extract an energydependent moment of inertia. For even-even nuclei and at low excitation energies, we observe a significan...

ar X iv : n uc l - th / 9 80 70 34 v 1 1 0 Ju l 1 99 8 Universalities of Triplet Pairing in Neutron Matter

The fundamental structure of the full set of solutions of the BCS P2 pairing problem in neutron matter is established. The relations between different spin-angle components in these solutions are shown to be practically independent of density, temperature, and the specific form of the pairing interaction. The spectrum of pairing energies is found to be highly degenerate. Typeset using REVTEX

ar X iv : n uc l - th / 0 70 30 71 v 1 22 M ar 2 00 7 Dynamical symmetry of isobaric analog 0 + states in medium mass nuclei

An algebraic sp(4) shell model is introduced to achieve a deeper understanding and interpretation of the properties of pairing-governed 0 states in medium mass atomic nuclei. The theory, which embodies the simplicity of a dynamical symmetry approach to nuclear structure, is shown to reproduce the excitation spectra and fine structure effects driven by proton-neutron interactions and isovector p...

ar X iv : n uc l - th / 0 20 70 77 v 1 2 6 Ju l 2 00 2 Λ + c - and Λ b - hypernuclei