Magic gaps and intruder levels in triaxially superdeformed nuclei

Ragnar Bengtsson, Hans Ryde

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Sammanfattning

Nuclear shell model calculations based on a modified harmonic-oscillator potential result in amazingly stable triaxial nuclear shapes. Major gaps in the single-particle energy spectra at proton number 71 and neutron number 94 combine constructively at low and intermediate rotational frequencies. At high frequencies, gaps at proton number 72 and neutron number 97 combine in an equally favourable way. The sizes of the gaps may be as large as 35% of the values for the gaps at the classical magic numbers 50 and 82 at spherical shape. The dependence on the positions of the intruder levels in forming the gaps is discussed. Experimentally observed rotational bands in lutetium (Z = 71) and hafnium (Z = 72) appear in isotopes and frequency ranges, which are consistent with the gaps in the theoretical single-particle energy spectra.
Originalspråkengelska
Sidor (från-till)355-362
TidskriftEuropean Physical Journal A. Hadrons and Nuclei
Volym22
Utgåva3
DOI
StatusPublished - 2004

Bibliografisk information

The information about affiliations in this record was updated in December 2015.
The record was previously connected to the following departments: Nuclear Physics (Faculty of Science) (011013004), Mathematical Physics (Faculty of Technology) (011040002)

Ämnesklassifikation (UKÄ)

  • Subatomär fysik
  • Fysik

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