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- Bruce, A. M., et al.
(author)
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Two-neutron alignment and shape changes in As-69
- 2000
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In: Physical Review C. Nuclear Physics. - 0556-2813 .- 1089-490X. ; 6202:2
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Journal article (peer-reviewed)abstract
- The nucleus As-69 was Studied using the Ca-40(S-32,3p)As-69 reaction at a beam energy of 105 MeV. An extension of the band built on the g(9/2) orbital was observed to exhibit a band crossing at a rotational frequency of 0.511 MeV with an associated alignment of 7 (h) over bar. This alignment is interpreted as being due to a pair of g(9/2) neutrons. Total Routhian surface calculations have been carried out which confirm that the shape of this nucleus changes from oblate at low spin to a triaxial prolate shape at intermediate spin.
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