Proton-neutron structure of the N = 52 nucleus 92Zr

V. Werner, D. Belic, P. Von Brentano, C. Fransen, A. Gade, H. Von Garrel, J. Jolie, U. Kneissl, C. Kohstall, A. Linnemann, A. F. Lisetskiy, N. Pietralla, H. H. Pitz, M. Scheck, K. H. Speidel, F. Stedile, S. W. Yates

Research output: Contribution to journalArticlepeer-review

100 Scopus citations


Following the successful identification of mixed-symmetric one- and two-phonon states in the N = 52 nuclei 94Mo and 96Ru, we have performed a photon scattering experiment on the N = 52 isotone 92Zr. Experimental data and shell model calculations show that both, single particle and collective degrees of freedom are present in the low-lying levels of 92Zr. The second excited quadrupole state shows the signatures of the one-phonon mixed-symmetric 2+ state, while calculations and data indicate an almost pure neutron configuration for the 21+, state, in contradiction with the F-spin symmetric limit. Furthermore, two strong dipole excitations, which are candidates for the two-phonon quadrupole-octupole coupled E1 excitation and for the mixed-symmetric 1+ two-phonon state, were observed.

Original languageEnglish
Pages (from-to)140-146
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Issue number3-4
StatePublished - Dec 19 2002

Bibliographical note

Funding Information:
For discussions the authors thank R.F. Casten, F. Iachello, T. Otsuka and R. Schwengner and we thank H. Klein for the Rits-Tk interface. This work was supported by the Deutsche Forschungsgemeinschaft under contracts Br 799/11-1, Kn 154/30 and Pi 393/1-2.


  • (γ, γ′)
  • A = 92
  • IBM
  • Mixed symmetry
  • NRF
  • Shell model
  • Zr

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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