Henrich, Corinna (2021)
Investigation of collectivity in the neutron-rich 142Xe.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00017473
Dissertation, Erstveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
The neutron-rich 142Xe lies north-east of the doubly-magic 132Sn, in a region that is not only describable by nuclear theory with single-particle and mean-field approaches, but also became accessible in experiments in recent times.
Since the astrophysical r process passes through the area, understanding the structure of nuclei therein may provide insight into the A=130 peak in the solar-element abundances.
Furthermore, 144Ba, a nucleus that exhibits strong octupole collectivity, lies in the immediate proximity just two protons above 142Xe.
In order to gain understanding on the evolution of quadrupole and octupole collectivity in this region, a Coulomb excitation experiment was carried out using the MINIBALL and C-REX setup at the HIE-ISOLDE facility, CERN.
Several reduced transition strengths of low-lying transitions along with the spectroscopic quadrupole moments of the respective states could be determined. Additionally, new low-spin low-energy states, interpreted as part of a gamma band, demonstrated for the first time in this isotope, could be identified, and the location of the 3- state supported.
The results are compared to SCCM and LSSM calculations.
| Typ des Eintrags: | Dissertation | ||||
|---|---|---|---|---|---|
| Erschienen: | 2021 | ||||
| Autor(en): | Henrich, Corinna | ||||
| Art des Eintrags: | Erstveröffentlichung | ||||
| Titel: | Investigation of collectivity in the neutron-rich 142Xe | ||||
| Sprache: | Englisch | ||||
| Referenten: | Kröll, Prof. Dr. Thorsten ; Nörtershäuser, Prof. Dr. Wilfried | ||||
| Publikationsjahr: | 2021 | ||||
| Ort: | Darmstadt | ||||
| Kollation: | xi, 154 Seiten | ||||
| Datum der mündlichen Prüfung: | 23 November 2020 | ||||
| DOI: | 10.26083/tuprints-00017473 | ||||
| URL / URN: | https://tuprints.ulb.tu-darmstadt.de/17473 | ||||
| Kurzbeschreibung (Abstract): | The neutron-rich 142Xe lies north-east of the doubly-magic 132Sn, in a region that is not only describable by nuclear theory with single-particle and mean-field approaches, but also became accessible in experiments in recent times. Since the astrophysical r process passes through the area, understanding the structure of nuclei therein may provide insight into the A=130 peak in the solar-element abundances. Furthermore, 144Ba, a nucleus that exhibits strong octupole collectivity, lies in the immediate proximity just two protons above 142Xe. In order to gain understanding on the evolution of quadrupole and octupole collectivity in this region, a Coulomb excitation experiment was carried out using the MINIBALL and C-REX setup at the HIE-ISOLDE facility, CERN. Several reduced transition strengths of low-lying transitions along with the spectroscopic quadrupole moments of the respective states could be determined. Additionally, new low-spin low-energy states, interpreted as part of a gamma band, demonstrated for the first time in this isotope, could be identified, and the location of the 3- state supported. The results are compared to SCCM and LSSM calculations. |
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| Alternatives oder übersetztes Abstract: |
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| Status: | Verlagsversion | ||||
| URN: | urn:nbn:de:tuda-tuprints-174736 | ||||
| Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 530 Physik | ||||
| Fachbereich(e)/-gebiet(e): | 05 Fachbereich Physik 05 Fachbereich Physik > Institut für Kernphysik 05 Fachbereich Physik > Institut für Kernphysik > Experimentelle Kernphysik |
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| TU-Projekte: | Bund/BMBF|05P15RDCIA|CERN-ISOLDE-MINIBALL Bund/BMBF|05P18RDCIA|05P2018-ISOLDE, TP2 |
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| Hinterlegungsdatum: | 09 Feb 2021 11:03 | ||||
| Letzte Änderung: | 17 Feb 2021 08:59 | ||||
| PPN: | |||||
| Referenten: | Kröll, Prof. Dr. Thorsten ; Nörtershäuser, Prof. Dr. Wilfried | ||||
| Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 23 November 2020 | ||||
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| Suche nach Titel in: | TUfind oder in Google | ||||
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