Shape evolution in even-even N≤126, Z≥82 nuclei
The shape evolution in the neutron-de cient lead, polonium and radium nuclei
has been investigated via in-beam and delayed y-ray and conversion electron
spectroscopy. The lead isotope 180Pb is found to still exhibit prolate excited
structure, related to the known intruder structures in the heavier isotopes.
The production cross-section of 180Pb was only 10 nb, one of the lowest ever
employed in an in-beam experiment. A candidate for an excited prolate band
was found in 192Po, making it the rst polonium isotope for which both oblate
and prolate rotational bands have been established. Contrary to the previous
results, the current experiments indicate that the onset of deformation in the
radium isotopic chain seems not to take place yet in 206Ra. Based on the very
similar decay patterns obtained in several in-beam experiments on the neutronde
cient nuclei in the region and on the statistical limits of detection, three
possible further cases for experiments are proposed. Methods developed for
the data analysis, specially aimed at the studies of exotic nuclei, are presented.
...


Publisher
University of JyväskyläISBN
978-951-39-3858-1ISSN Search the Publication Forum
0075-465XKeywords
Metadata
Show full item recordCollections
- Väitöskirjat [3229]
Related items
Showing items with similar title or keywords.
-
Shape Coexistence in the Neutron-Deficient Even-Even Hg182−188 Isotopes Studied via Coulomb Excitation
Bree, N.; Wrzosek-Lipska, K.; Petts, A.; Andreyev, A.; Bastin, B.; Bender, M.; Blazhev, A.; Bruyneel, B.; Butler, P. A.; Butterworth, J.; Carpenter, M. P.; Cederkäll, J.; Clément, E.; Cocolios, T. E.; Deacon, A.; Diriken, J.; Ekström, A.; Fitzpatrick, C.; Fraile, L. M.; Fransen, Ch.; Freeman, S. J.; Gaffney, L. P.; García-Ramos, J. E.; Geibel, K.; Gernhäuser, R.; Grahn, Tuomas; Guttormsen, M.; Hadinia, B.; Hadyńska-Kle¸k, K.; Hass, M.; Heenen, P.-H.; Herzberg, R.-D.; Hess, H.; Heyde, K.; Huyse, M.; Ivanov, O.; Jenkins, D. G.; Julin, Rauno; Kesteloot, N.; Kröll, Th.; Krücken, R.; Larsen, A. C.; Lutter, R.; Marley, P.; Napiorkowski, P. J.; Orlandi, R.; Page, R. D.; Pakarinen, Janne; Patronis, N.; Peura, Pauli; Piselli, E.; Rahkila, Panu; Rapisarda, E.; Reiter, P.; Robinson, A. P.; Scheck, M.; Siem, S.; Chakkal, K. Singh; Smith, J. F.; Srebrny, J.; Stefanescu, I.; Tveten, G. M.; Van Duppen, P.; Walle, J. Van de; Voulot, D.; Warr, N.; Wenander, F.; Wiens, A.; Wood, J. L.; Zielińska, and M. (American Physical Society, 2014)Coulomb-excitation experiments to study electromagnetic properties of radioactive even-even Hg isotopes were performed with 2.85 MeV=nucleon mercury beams from REX-ISOLDE. Magnitudes and relative signs of the reduced E2 ... -
Development of the recoil-beta tagging method and recoil-beta tagging studies of ⁶⁶As and ⁶⁶Se
Ruotsalainen, Panu (2013)The structure of self-conjugate odd-odd N = Z nucleus 66As has been experimentally studied in detail. Prompt and isomeric excited states have been observed utilising recoil-β tagging and recoil-isomer tagging methods. ... -
Alpha-decay fine structure in even-even nuclei
Peltonen, Sami (University of Jyväskylä, 2009)The aim of this work has been to study the systematics of -decay fine structure in those cases, where the daughter nucleus is doubly even and has a 2+ state as the lowest excited state. Restriction to these decays is a ... -
Microscopic nuclear-structure calculations for the low-lying collective states in even-even nuclei
Kotila, Jenni (University of Jyväskylä, 2008) -
Universal trend of charge radii of even-even Ca–Zn nuclei
Kortelainen, Markus; Sun, Zhonghao; Hagen, Gaute; Nazarewicz, Witold; Papenbrock, Thomas; Reinhard, Paul-Gerhard (American Physical Society (APS), 2022)Radii of nuclear charge distributions carry information about the strong and electromagnetic forces acting inside the atomic nucleus. Whereas the global behavior of nuclear charge radii is governed by the bulk properties ...