Consequences of neutron-proton pairing correlations for the rotational motion of the N=Z nucleus 72Kr
Journal Article
·
· Physical Review C
- and others
High-spin states in the N=Z nucleus {sup 72}Kr were populated using the {sup 40}Ca({sup 36}Ar,2p2n) reaction at a beam energy of 145 MeV. The yrast band has been observed up to a tentative spin of 20{Dirac_h}. Nonyrast rotational structures have also been observed for the first time. The alignment of g{sub 9/2} protons and neutrons in the yrast band is observed to be significantly delayed relative to the heavier even-even Kr isotopes. Exact deformed cranked shell model calculations suggest that this could be due to the combined effect of isovector (T=1) and isoscalar (T=0) neutron-proton pairing correlations.
- Research Organization:
- Lawrence Berkeley National Laboratory
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- AC03-76SF00098; FG02-95ER40934; W-31109-ENG-38
- OSTI ID:
- 40276982
- Journal Information:
- Physical Review C, Journal Name: Physical Review C Journal Issue: 2 Vol. 64; ISSN 0556-2813
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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