The browser you are using is not supported by this website. All versions of Internet Explorer are no longer supported, either by us or Microsoft (read more here: https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Please use a modern browser to fully experience our website, such as the newest versions of Edge, Chrome, Firefox or Safari etc.

Joakim

Joakim Cederkäll

Professor

Joakim

Do nuclei go pear-shaped? Coulomb excitation of Rn-220 and Ra-224 at REX-ISOLDE (CERN)

Author

  • M. Scheck
  • L. P. Gaffney
  • P. A. Butler
  • A. B. Hayes
  • F. Wenander
  • M. Albers
  • B. Bastin
  • C. Bauer
  • A. Blazhev
  • S. Boenig
  • N. Bree
  • Joakim Cederkäll
  • T. Chupp
  • D. Cline
  • T. E. Cocolios
  • T. Davinson
  • H. De Witte
  • J. Diriken
  • T. Grahn
  • A. Herzan
  • M. Huyse
  • D. G. Jenkins
  • D. T. Joss
  • N. Kesteloot
  • J. Konki
  • M. Kowalczyk
  • Th. Kroell
  • E. Kwan
  • R. Lutter
  • K. Moschner
  • P. Napiorkowski
  • J. Pakarinen
  • M. Pfeiffer
  • D. Radeck
  • P. Reiter
  • K. Reynders
  • S. V. Rigby
  • L. M. Robledo
  • M. Rudigier
  • S. Sambi
  • M. Seidlitz
  • B. Siebeck
  • T. Stora
  • P. Thoele
  • P. Van Duppen
  • M. J. Vermeulen
  • M. von Schmid
  • D. Voulot
  • N. Warr
  • K. Wimmer
  • K. Wrzosek-Lipska
  • C. Y. Wu
  • M. Zielinska
Show all

Summary, in English

The IS475 collaboration conducted Coulomb-excitation experiments with post-accelerated radioactive Rn-220 and Ra-224 beams at the REX-ISOLDE facility. The beam particles (E-beam: 2.83 MeV/u) were Coulomb excited using Ni-60, Cd-14, and Sn-120 scattering targets. De-excitation gamma-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 gamma-ray yields. The extracted < 3 parallel to E3 parallel to 0(+)> matrix element allows for the conclusion that, while Rn-220 represents an octupole vibrational system, Ra-224 has already substantial octupole correlations in its ground state. This finding has i(m)plications for the search of CP-violating Schiff moments in the atomic systems of the adjacent odd-mass nuclei.

Department/s

  • Nuclear physics

Publishing year

2015

Language

English

Pages

01038-01038

Publication/Series

Cgs15 - Capture Gamma-ray Spectroscopy and Related Topics

Volume

93

Document type

Conference paper

Publisher

EDP Sciences

Topic

  • Atom and Molecular Physics and Optics

Conference name

15th International Symposium on Capture Gamma-Ray Spectroscopy and Related Topics (CGS)

Conference date

2014-08-25 - 2014-08-29

Status

Published

ISBN/ISSN/Other

  • ISSN: 2101-6275
  • ISSN: 2100-014X