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Träfflista för sökning "WFRF:(LEE IY) srt2:(2005-2009)"

Sökning: WFRF:(LEE IY) > (2005-2009)

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1.
  • Evans, AO, et al. (författare)
  • High-spin structure in Er-157 up to and above band termination
  • 2006
  • Ingår i: Physical Review C (Nuclear Physics). - 0556-2813. ; 73:6
  • Tidskriftsartikel (refereegranskat)abstract
    • The high-spin structure of Er-157 has been greatly expanded using the Gammasphere spectrometer to investigate the Cd-114(Ca-48,5n) reaction at 215 MeV. Many new transitions have been placed in a greatly augmented level scheme up to spin 40h with many collective rotational sequences established. With increasing angular momentum, this nucleus undergoes a Coriolis-induced shape transition from a deformed state of collective rotation to a noncollective configuration. This transition manifests itself as favored band termination near I=45h in three rotational structures. Many weakly populated states lying at high excitation energy that decay into the terminating states have been discovered. Cranked-Nilsson-Strutinsky calculations suggest that the levels that feed the terminating states arise from weakly collective configurations that break the Z=64 semimagic core.
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2.
  • Evans, AO, et al. (författare)
  • Magnetic properties of smooth terminating dipole bands in Te-110,Te-112
  • 2006
  • Ingår i: Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics. - : Elsevier BV. - 0370-2693. ; 636:1, s. 25-30
  • Tidskriftsartikel (refereegranskat)abstract
    • Three strongly coupled sequences have been established in Te-110,Te-112 up to high spins. They are interpreted in terms of deformed structures built on proton 1-particle-1-hole excitations that reach termination at I similar to 40h. This is the first observation of smooth terminating dipole structures in this mass region. Lifetime measurements have allowed the extraction of experimental B(M 1; 1 -> I - 1) and B(E2; I -> I - 2) reduced transition rates for one of the dipole bands in Te-110. The results support the deformed interpretation. (c) 2006 Elsevier B.V. All rights reserved.
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