Interfering Doorway States and Giant Resonances I: Resonance Spectrum and Multipole Strengths
Using a phenomenological schematic model of multipole giant resonances we consider the effects of overlapping of their doorway components. The conccpt of the partial widths of a giant resonance becomes ambiguous when the escape widths get comparable with the spacings between the components. In such...
| Main Authors: | , , , |
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| Language: | English |
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Forschungszentrum Rossendorf
2010
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| Online Access: | http://nbn-resolving.de/urn:nbn:de:bsz:d120-qucosa-31356 https://hzdr.qucosa.de/id/qucosa%3A21962 https://hzdr.qucosa.de/api/qucosa%3A21962/attachment/ATT-0/ |
| Summary: | Using a phenomenological schematic model of multipole giant resonances we consider the effects of overlapping of their doorway components. The conccpt of the partial widths of a giant resonance becomes ambiguous when the escape widths get comparable with the spacings between the components. In such a case, the partial widths determined in terms of the K- and S-matrices differ from each othcr. The mixing of the doorway components due to the interaction via the common decay channels influences significantly their multipole strengths, widths and positions in energy. |
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