%0 Journal Article %1 ISI:000411768900001 %A Petkov, P. %A Mueller-Gatermann, C. %A Dewald, A. %A Blazhev, A. %A Fransen, C. %A Jolie, J. %A Scholz, P. %A Zell, K. O. %A Zilges, A. %D 2017 %J Phys. Rev. C %K blazhev dewald imported myown zilges %N 3 %R 10.1103/PhysRevC.96.034326 %T Lifetime measurements with improved precision in S-30,S-32 and possible influence of large-scale clustering on the appearance of strongly deformed states %V 96 %X The formation of large size clusters and/or their relative motion as possible excitation mode are suggested to be closely related to the origin of deformation in specific cases. In S-32, the consideration of some excitations in this nucleus as based on the existence of two doubly magic O-16 clusters offers a possible solution to the long-standing problem of missing quadrupole collectivity in shell-model calculations aiming to describe electromagnetic E-2 transition strengths and quadrupole moments. To experimentally check again this collectivity, lifetime measurements were performed on S-30 and S-32. In S-32, at least, the reproduction of a number of observables supports the cluster scenario. Additionally, the superdeformed yrast band in Zr-80 could find an explanation as based on the relative motion of two Ca-40 clusters. Simultaneously, a necessity arises to revise experimentally some lifetimes derived in the past within the Blaugrund approximation when using the Doppler-shift attenuation method.

@article{ISI:000411768900001, abstract = {The formation of large size clusters and/or their relative motion as possible excitation mode are suggested to be closely related to the origin of deformation in specific cases. In S-32, the consideration of some excitations in this nucleus as based on the existence of two doubly magic O-16 clusters offers a possible solution to the long-standing problem of missing quadrupole collectivity in shell-model calculations aiming to describe electromagnetic E-2 transition strengths and quadrupole moments. To experimentally check again this collectivity, lifetime measurements were performed on S-30 and S-32. In S-32, at least, the reproduction of a number of observables supports the cluster scenario. Additionally, the superdeformed yrast band in Zr-80 could find an explanation as based on the relative motion of two Ca-40 clusters. Simultaneously, a necessity arises to revise experimentally some lifetimes derived in the past within the Blaugrund approximation when using the Doppler-shift attenuation method.}, added-at = {2019-11-20T10:09:48.000+0100}, article-number = {034326}, author = {Petkov, P. and Mueller-Gatermann, C. and Dewald, A. and Blazhev, A. and Fransen, C. and Jolie, J. and Scholz, P. and Zell, K. O. and Zilges, A.}, biburl = {https://www.bibsonomy.org/bibtex/2d3742f538c609687f77252659a169c12/ikpcologne}, doi = {10.1103/PhysRevC.96.034326}, eissn = {2469-9993}, interhash = {2252d24c3efcf8db6b5467e02eac58af}, intrahash = {d3742f538c609687f77252659a169c12}, issn = {2469-9985}, journal = {Phys. Rev. C}, keywords = {blazhev dewald imported myown zilges}, month = {SEP 26}, number = 3, orcid-numbers = {Muller-Gatermann, Claus/0000-0002-9181-5568}, timestamp = {2020-01-13T16:08:45.000+0100}, title = {Lifetime measurements with improved precision in S-30,S-32 and possible influence of large-scale clustering on the appearance of strongly deformed states}, unique-id = {ISI:000411768900001}, volume = 96, year = 2017 }