• Rapid Communication

Proton decay of the highly deformed odd-odd nucleus Eu130

C. N. Davids, P. J. Woods, H. Mahmud, T. Davinson, A. Heinz, J. J. Ressler, K. Schmidt, D. Seweryniak, J. Shergur, A. A. Sonzogni, and W. B. Walters
Phys. Rev. C 69, 011302(R) – Published 30 January 2004

Abstract

The proton decay of the highly deformed odd-odd nucleus Eu130 has been observed by bombarding a Ni58 target with a beam of 425MeV Kr78 ions. Fusion evaporation residues were separated in-flight using the Argonne fragment mass analyzer and implanted into a double-sided silicon strip detector. Eu130 decays by the emission of a proton with energy Ep=1020(15)keV[Qp=1028(15)keV] and half-life t12=0.900.29+0.49ms. The transition is assigned to a highly deformed (β20.3)Jπ=1+ ground-state configuration by comparing the decay rate with a new theoretical formalism for deformed odd-odd nuclei. These results clearly demonstrate the sensitivity of the proton decay rate to the spectator neutron configuration.

  • Figure
  • Figure
  • Received 13 October 2003

DOI:https://doi.org/10.1103/PhysRevC.69.011302

©2004 American Physical Society

Authors & Affiliations

C. N. Davids1, P. J. Woods2, H. Mahmud2, T. Davinson2, A. Heinz1, J. J. Ressler3, K. Schmidt2, D. Seweryniak1,3, J. Shergur1,3, A. A. Sonzogni4, and W. B. Walters3

  • 1Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
  • 2Department of Physics and Astronomy, University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom
  • 3Department of Chemistry, University of Maryland, College Park, Maryland 20742, USA
  • 4National Nuclear Data Center, Brookhaven National Laboratory, Upton, New York 11973, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 69, Iss. 1 — January 2004

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review C

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×