Annual report / Kernforschungsanlage Jülich Institut für Kernphysik : 1984
Annual report / Kernforschungsanlage Jülich Institut für Kernphysik : 1984
The present Annual Report of the IKP contains a number of short articles on the research work. techni cal devel opments and pl ans for future projects. Part of the work has been carried out by guest groups, mostly in collaboration with members of our institute, making use of our facilities, mainly t...
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Personal Name(s): | Grümmer, F. (Editor) |
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Schult, O. (Editor) / Seyfarth, H. (Editor) / Speth, J. (Editor) / Turek, P. (Editor) | |
Contributing Institute: |
Publikationen vor 2000; PRE-2000; Retrocat |
Imprint: |
Jülich
Kernforschungsanlage Jülich GmbH Zentralbibliothek, Verlag
1985
|
Physical Description: |
427 p. |
Document Type: |
Report Book |
Research Program: |
Addenda |
Series Title: |
Spezielle Berichte der Kernforschungsanlage Jülich
305 |
Link: |
OpenAccess OpenAccess |
Publikationsportal JuSER |
The present Annual Report of the IKP contains a number of short articles on the research work. techni cal devel opments and pl ans for future projects. Part of the work has been carried out by guest groups, mostly in collaboration with members of our institute, making use of our facilities, mainly the cyclotron JULIC, the large magnetic spectrograph BIG KARL and the fission product separator JOSEF. Studies of reaction mechanisms were concentrated on investigations of coincident emission of light ejectiles from continuum states excited with light and heavy ions. Investigations of giant resonances were continued, also transfer reaction studies, spin-flip excitation studies and studies of multiplet and cluster structures and of p-hole states. Among others, knock-on reactions and cosmochemically interesting reactions were studied. In nuclear spectroscopy one major field of research is the study of high spin states. In $^{180}$Os three band crossings were observed. A second field is the region of $^{146}$Gd where GT decays were investigated, yrast isomers studies were continued and ground state masses were determined. In the A = 100 region the emphasis is on a more detailed understanding of the nuclear shape transition. While a well developed rotational band exists in 98$\gamma$, an isomer has been discovered in 97$\gamma$ which seems to have a pronounced shell model structure. Neutron capture $\gamma-ray$ studies of odd and odd-odd nuclei aim at tests of the PTQM-model. The search for axion-like particles has been pursued mainly at the power reactor at Biblis. Theoretical studies were carried out on the energy and density dependence of the nucleon-nucleon interaction within microscopic models which include relativistic effects and medium polarization. A fully microscopic analysis of high energetic (p,n) scattering data gave new insight into the role of the $\Delta$-resonance. It has been shown that in the framework of a symmetry conserving variational approach the nucleon can be stabilized against collapse by coupling to elementary pions with finite extension. |