25 research outputs found
The Role of Historical Narrative in Biblical Thought:the Tendencies Underlying Old Testament Historiography
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68403/2/10.1177_030908928100602102.pd
Isobar Excitations and the Ground State of Nuclei
The influence of isobar components on the ground state properties of
nuclear systems is investigated for nuclear matter as well as finite nuclei.
Many-body wave functions, including isobar configurations, and binding energies
are evaluated employing the framework of the coupled-cluster theory. It is
demonstrated that the effect of isobar configurations depends in a rather
sensitive way on the model used for the baryon-baryon interaction. As examples
for realistic baryon-baryon interactions with explicit inclusion of isobar
channels we use the local () and non-local meson exchange potentials
(Bonn) but also a model recently developed by the Salamanca group,
which is based on a quark picture. The differences obtained for the nuclear
observables are related to the treatment of the interaction, the -exchange
contributions in particular, at high momentum transfers.Comment: 12 pages, including 5 figure