Restoring the valence-shell stabilization in 140Nd

  • R. Kern*
  • , R. Zidarova
  • , N. Pietralla
  • , G. Rainovski
  • , R. Stegmann
  • , A. Blazhev
  • , A. Boukhari
  • , J. Cederkäll
  • , J. G. Cubiss
  • , M. Djongolov
  • , C. Fransen
  • , L. P. Gaffney
  • , K. Gladnishki
  • , E. Giannopoulos
  • , H. Hess
  • , J. Jolie
  • , V. Karayonchev
  • , L. Kaya
  • , J. M. Keatings
  • , D. Kocheva
  • Th. Kröll, O. Möller, G. G. O'Neill, J. Pakarinen, P. Reiter, D. Rosiak, M. Scheck, J. Snall, P.-A. Söderström, P. Spagnoletti, M. Stoyanova, S. Thiel, A. Vogt, N. Warr, A. Welker, V. Werner, J. Wiederhold, H. De Witte
*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
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Abstract

A projectile Coulomb-excitation experiment was performed at the radioactive-ion beam facility HIE-ISOLDE at CERN to obtain E2 and M1 transition matrix elements of 140Nd using the multistep Coulomb-excitation code GOSIA. The absolute M1 strengths, B(M1; 2+2 → 2+1) = 0.033(8) µ2N,B(M1; 2+3 → 2+1) = 0.26+0.11−µ2N, and B(M1; 2+4 → 2+1) < 0.04 µ2N, identify the 2+3 state as the main fragment of the one-quadrupole-phonon proton-neutron mixed-symmetry state of 140Nd. The degree of F-spin mixing in 140Nd was quantified with the determination of the mixing matrix element VF−mix < 7+13−7 keV.
Original languageEnglish
Article number041304(R)
Number of pages6
JournalPhysical Review C
Volume102
Issue number4
DOIs
Publication statusPublished - 16 Oct 2020

Keywords

  • Coulomb-excitation
  • radioactive-ion beam
  • CERN

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