High-spin structures and alignment properties in {sup 126}Ce
Journal Article
·
· Physical Review C
- and others
Excited states in {sup 126}Ce have been observed with the GAMMASPHERE {gamma}-ray detector array, used in conjunction with the MICROBALL charged-particle detector. The reaction {sup 64}Zn({sup 64}Zn,xpn{alpha}) (beam energy 260 MeV) was used to populate a wide range of nuclei in the neutron-deficient region with A{approx}120. {sup 126}Ce was populated via the 2p evaporation channel. The three previously observed bands have been extended to higher spins and some other structures have been identified. The yrast band shows evidence of a delayed neutron alignment occurring at a rotational frequency {omega}{approx}0.5 MeV/{Dirac_h} as observed in the neighboring odd-A nucleus {sup 127}Pr. One of the two excited bands shows evidence for a similar crossing at a slightly lower frequency and also exhibits a sudden gain in alignment at {omega}=0.57 MeV/{Dirac_h}. The third band may involve the coupling of a {gamma}-vibrational state. All three rotational bands are discussed in terms of standard and extended cranked shell model calculations.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40206187
- Journal Information:
- Physical Review C, Journal Name: Physical Review C Journal Issue: 5 Vol. 63; ISSN 0556-2813
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
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