Influence of the np Interaction on the Beta Decay of 94Pd

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Abstract

We present results from stopped beam rare isotope spectroscopic investigations at the GSI (RISING) experiment based on the detection of gamma-ray transitions following the beta decay of Pd-94. A comparison between the measured low-lying level scheme of Rh-94 and the prediction from shell-model calculations reveals the important roles of the g(7/2) and g(9/2) orbitals in explaining the structural features. The low values of the Gamow-Teller strengths B(GT) can be attributed to the influence of the neutron-proton interaction, which gives rise to an increased seniority mixing for the nuclear states, thereby leading to a fragmentation of the strength to several daughter levels. These results provide further strong indications that Pd-94 resides in the middle of a structural transition region in the Pd isotopes as the N = Z line is approached.

Details

Authors
  • B. S. Nara Singh
  • T. S. Brock
  • R. Wadsworth
  • H. Grawe
  • P. Boutachkov
  • N. Braun
  • A. Blazhev
  • Z. Liu
  • M. Gorska
  • S. Pietri
  • C. Domingo-Pardo
  • S. J. Steer
  • A. Atac
  • L. Bettermann
  • L. Caceres
  • T. Engert
  • T. Faestermann
  • F. Farinon
  • F. Finke
  • K. Geibel
  • J. Gerl
  • R. Gernhaeuser
  • N. Goel
  • A. Gottardo
  • J. Grebosz
  • C. Hinke
  • Robert Hoischen
  • G. Ilie
  • H. Iwasaki
  • J. Jolie
  • A. Kaskas
  • I. Kojouharov
  • R. Kruecken
  • N. Kurz
  • E. Merchan
  • C. Nociforo
  • J. Nyberg
  • M. Pfuetzner
  • A. Prochazka
  • Zs. Podolyak
  • P. H. Regan
  • P. Reiter
  • S. Rinta-Antila
  • C. Scholl
  • H. Schaffner
  • P. -A. Soderstrom
  • N. Warr
  • H. Weick
  • H. -J. Wollersheim
  • P. J. Woods
  • F. Nowacki
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Subatomic Physics
Original languageEnglish
Article number041301(R)
JournalPhysical Review C (Nuclear Physics)
Volume86
Issue number4
Publication statusPublished - 2012
Publication categoryResearch
Peer-reviewedYes

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