EPJ Web of Conferences (Jan 2015)
Do nuclei go pear-shaped? Coulomb excitation of 220Rn and 224Ra at REX-ISOLDE (CERN)
- Scheck M.,
- Gaffney L. P.,
- Butler P. A.,
- Hayes A. B.,
- Wenander F.,
- Albers M.,
- Bastin B.,
- Bauer C.,
- Blazhev A.,
- Boenig S.,
- Bree N.,
- Cederkall J.,
- Chupp T.,
- Cline D.,
- Cocolios T. E.,
- Davinson T.,
- De Witte H.,
- Diriken J.,
- Grahn T.,
- Herzan A.,
- Huyse M.,
- Jenkins D. G.,
- Joss D. T.,
- Kesteloot N.,
- Konki J.,
- Kowalczyk M.,
- Kroell Th.,
- Kwan E.,
- Lutter R.,
- Moschner K.,
- Napiorkowski P.,
- Pakarinen J.,
- Pfeiffer M.,
- Radeck D.,
- Reiter P.,
- Reynders K.,
- Rigby S. V.,
- Robledo L. M.,
- Rudigier M.,
- Sambi S.,
- Seidlitz M.,
- Siebeck B.,
- Stora T.,
- Thoele P.,
- Van Duppen P.,
- Vermeulen M. J.,
- von Schmid M.,
- Voulot D.,
- Warr N.,
- Wimmer K.,
- Wrzosek-Lipska K.,
- Wu C. Y.,
- Zielinska M.
Affiliations
- Scheck M.
- Gaffney L. P.
- Butler P. A.
- Oliver Lodge Laboratory, Liverpool University
- Hayes A. B.
- Dept. of Physics & Astronomy, University of Rochester
- Wenander F.
- ISOLDE, CERN
- Albers M.
- Institut für Kernphysik, Universität zu Köln
- Bastin B.
- GANIL
- Bauer C.
- Institut für Kernphysik, Technische Universität Darmstadt
- Blazhev A.
- Institut für Kernphysik, Universität zu Köln
- Boenig S.
- Institut für Kernphysik, Technische Universität Darmstadt
- Bree N.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Cederkall J.
- Department of Nuclear Physics, Lund University
- Chupp T.
- Department of Physics, University of Michigan
- Cline D.
- Dept. of Physics & Astronomy, University of Rochester
- Cocolios T. E.
- ISOLDE, CERN
- Davinson T.
- School of Physics & Astronomy, University of Edinburgh
- De Witte H.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Diriken J.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Grahn T.
- Herzan A.
- Department of Physics, University of Jyväskylä
- Huyse M.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Jenkins D. G.
- Department of Physics, University of York
- Joss D. T.
- Oliver Lodge Laboratory, Liverpool University
- Kesteloot N.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Konki J.
- Department of Physics, University of Jyväskylä
- Kowalczyk M.
- Heavy Ion Laboratory, University of Warsaw
- Kroell Th.
- Institut für Kernphysik, Technische Universität Darmstadt
- Kwan E.
- Physics Division, Lawrence Livermore National Laboratory
- Lutter R.
- Moschner K.
- Institut für Kernphysik, Universität zu Köln
- Napiorkowski P.
- Heavy Ion Laboratory, University of Warsaw
- Pakarinen J.
- Pfeiffer M.
- Institut für Kernphysik, Universität zu Köln
- Radeck D.
- Institut für Kernphysik, Universität zu Köln
- Reiter P.
- Institut für Kernphysik, Universität zu Köln
- Reynders K.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Rigby S. V.
- Oliver Lodge Laboratory, Liverpool University
- Robledo L. M.
- Departamento de Fisica Teorica, Universidad Autonoma de Madrid
- Rudigier M.
- Institut für Kernphysik, Universität zu Köln
- Sambi S.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Seidlitz M.
- Institut für Kernphysik, Universität zu Köln
- Siebeck B.
- Institut für Kernphysik, Universität zu Köln
- Stora T.
- ISOLDE, CERN
- Thoele P.
- Institut für Kernphysik, Universität zu Köln
- Van Duppen P.
- Instituut voor Kern- en Stralingsfysica KU Leuven
- Vermeulen M. J.
- Department of Physics, University of York
- von Schmid M.
- Institut für Kernphysik, Technische Universität Darmstadt
- Voulot D.
- ISOLDE, CERN
- Warr N.
- Institut für Kernphysik, Universität zu Köln
- Wimmer K.
- Physik Department E12, Technische Universität Muenchen
- Wrzosek-Lipska K.
- Heavy Ion Laboratory, University of Warsaw
- Wu C. Y.
- Physics Division, Lawrence Livermore National Laboratory
- Zielinska M.
- DOI
- https://doi.org/10.1051/epjconf/20159301038
- Journal volume & issue
-
Vol. 93
p. 01038
Abstract
The IS475 collaboration conducted Coulomb-excitation experiments with post-accelerated radioactive 220Rn and 224Ra beams at the REX-ISOLDE facility. The beam particles (Ebeam: 2.83 MeV/u) were Coulomb excited using 60Ni, 114Cd, and 120Sn scattering targets. De-excitation γ-rays were detected employing the Miniball array and scattered particles were detected in a silicon detector. Exploiting the Coulomb-excitation code GOSIA for each nucleus several matrix elements could be obtained from the measured γ-ray yields. The extracted ‹3−||E3||0+› matrix element allows for the conclusion that, while 220Rn represents an octupole vibrational system, 224Ra has already substantial octupole correlations in its ground state. This finding has implications for the search of CP-violating Schiff moments in the atomic systems of the adjacent odd-mass nuclei.
