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  • KORTEN, W, et al. (författare)
  • ON THE DECAY OF THE SUPERDEFORMED BAND IN PB-194
  • 1993
  • Ingår i: Zeitschrift für Physik A Hadrons and Nuclei. - 0939-7922 .- 1431-5831. ; 344:4, s. 475-476
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on new results for the decay of the superdeformed (SD) band in 194Pb. No transitions linking the SD structure with the known level scheme of 194Pb could be found, but the feeding intensities into the normal-deformed states are determined and limits on the one-step decay of the SD band are given.
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  • Schnack-Petersen, H, et al. (författare)
  • Superdeformed triaxial bands in Lu-163,165
  • 1995
  • Ingår i: Nuclear Physics A. - : Elsevier BV. - 0375-9474. ; 594:2, s. 175-202
  • Tidskriftsartikel (refereegranskat)abstract
    • An experimental investigation of the nucleus 165Lu, using the reactions 138Ba(31P,4n) 165Lu and 150Sm(19F,4n) 165Lu at beam energies of E = 155 and 95 MeV, respectively, has been performed. Among other additions to the existing level scheme, a new band, with transition energies almost identical to a strongly deformed (β2 0.42) πi13/2[660 1/2+] band recently discovered in 163Lu has been established. A theoretical analysis of the structure of the two Lu isotopes, 165Lu and 163Lu is carried out by detailed calculations of total potential energy surfaces for specific configurations. By a diabatic treatment of crossings specific proton configurations as πi13/2[660 1/2+] are identified throughout the deformation space and as a function of spin. It is found as a general feature that well deformed local minima of considerable nonaxial symmetry coexist with a normal deformed global minimum. The depth of these local minima depend on configuration. The structure of the different global and local minima found in these surfaces are analysed and discussed in terms of occupation of available basis configurations and their orientation relative to the rotation axis. The strongly deformed minima are found to belong to a group of superdeformed triaxial structures, expected to appear at low energies for certain favourable combinations of proton and neutron numbers.
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  • Abreu, P, et al. (författare)
  • Measurement of the spin density matrix for the rho(0), K*(0)(892) and phi produced in Z(0) decays
  • 1997
  • Ingår i: PHYSICS LETTERS B. - : ELSEVIER SCIENCE BV. - 0370-2693. ; 406:3, s. 271-286
  • Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
    • The spin density matrix elements for the rho(0), K-*0(892) and phi produced in hadronic Z(0) decays are measured in the DELPHI detector. There is no evidence for spin alignment of the K-*0(892) and phi, in the region x(p) less than or equal to 0.3 (x(p) =
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  • Resultat 1-10 av 46

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