Spectroscopy study of the proton emitter {sup 109}I.
Excited states in the proton-unbound nucleus {sup 109}I were populated using the {sup 54}Fe({sup 58}Ni,p2n) reaction at a beam energy of 220 MeV. Gamma rays in {sup 109}I were identified using the recoil-decay tagging technique. The analysis of proton-correlated {gamma}{gamma} coincidence data produced the yrast decay sequence in {sup 109}I, which can be tentatively assigned as built on the h{sub 11/2} proton state based on systematic trends in the neighboring isotopes. This sequence is completely different from that reported previously. A comparison of the h{sub 11/2} band in {sup 109}I with those in heavier iodines shows that {sup 109}I continues the trend of decreasing quadrupole deformation with decreasing neutron number.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 942462
- Report Number(s):
- ANL/PHY/JA-31720
- Journal Information:
- Phys. Rev. C, Journal Name: Phys. Rev. C Journal Issue: 4 ; Apr. 1999 Vol. 59; ISSN 0556-2813; ISSN PRVCAN
- Country of Publication:
- United States
- Language:
- ENGLISH
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