First evidence for smooth band termination in valence space in the mass 130 region : spectroscopy of $^{127}$La - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Physical Review C Year : 2000

First evidence for smooth band termination in valence space in the mass 130 region : spectroscopy of $^{127}$La

C.M. Parry
  • Function : Author
R. Wadsworth
  • Function : Author
A.N. Wilson
  • Function : Author
A.J. Boston
  • Function : Author
P.J. Nolan
  • Function : Author
E.S. Paul
  • Function : Author
J.A. Sampson
  • Function : Author
A.T. Semple
  • Function : Author
I. Ragnarsson
  • Function : Author
B.G. Dong
  • Function : Author

Abstract

High spin states in 127La have been studied using the 32S(100Mo,p4n) reaction at a beam energy of 155 MeV. Gamma rays were detected using the EUROBALL III spectrometer. One of the side bands in 127La is observed to be populated to a spin of 832+. These data are compared with cranked Nilsson-Strutinski calculations which suggest that the structure is a smoothly terminating band, in valence space, based upon a π[(g7/2d5/2)5(h11/2)2]⊗ν[(g7/2d5/2)12(h11/2)6(d3/2s1/2)2] configuration, which can carry a maximum spin of 47.5ħ. This is the first identification of such a structure in this mass region. (APS)
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Dates and versions

in2p3-00003895 , version 1 (26-01-2000)

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C.M. Parry, R. Wadsworth, A.N. Wilson, A.J. Boston, P.J. Nolan, et al.. First evidence for smooth band termination in valence space in the mass 130 region : spectroscopy of $^{127}$La. Physical Review C, 2000, 61, pp.021303(R). ⟨10.1103/PhysRevC.61.021303⟩. ⟨in2p3-00003895⟩
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