Influence of the np interaction on the β decay of 94Pd

B. S. Nara Singh*, T. S. Brock, R. Wadsworth, H. Grawe, P. Boutachkov, N. Braun, A. Blazhev, Z. Liu, M. Gorska, S. Pietri, D. Rudolph, C. Domingo-Pardo, S. J. Steer, A. Atac, L. Bettermann, L. Caceres, T. Engert, T. Faestermann, F. Farinon, F. FinkeK. Geibel, J. Gerl, R. Gernhaeuser, N. Goel, A. Gottardo, J. Grebosz, C. Hinke, R. 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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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.

Original languageEnglish
Article numberARTN 041301
Number of pages6
JournalPhysical Review C
Volume86
Issue number4
DOIs
Publication statusPublished - 11 Oct 2012

Keywords

  • NUCLEAR-STRUCTURE
  • SPECTROSCOPY
  • SHELL-MODEL
  • RH-94
  • SPIN
  • BEAM RISING CAMPAIGN
  • PROTON DRIP-LINE
  • ISOMERS
  • NEUTRON-DEFICIENT ISOTOPES
  • 2-PROTON RADIOACTIVITY

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