3 papers
nucl-th1997
QRPA and its extensions in a solvable model
Jorge G. Hirsch, Peter O. Hess, Osvaldo Civitarese
An exactly solvable model is introduced, which is equivalent to the exact shell-model treatment of protons and neutrons in a single j-shell for Fermi-type excitations. Exact energi…
hep-th1996
Boson Mapping in Field Theory
P. O. Hess, J. C. López Vieyra, C. R. Stephens
A boson mapping of pair field operators is presented. The mapping preserves all hermiticity properties and the Poisson bracket relations between fields and momenta. The most practi…
nucl-th1994
Pseudo SU(3) Model and Abnormal Parity States
Jorge G. Hirsch, Octavio Castaños, Peter O. Hess
The most important features of the pseudo SU(3) model are reviewed. This description of heavy deformed nuclei is based on pseudo spin symmetry, and is able to correctly predict the…