Octupole deformation in sup 221 Fr; E1 transition rates

Journal Article · Tue Jul 10 00:00:00 EDT 1990 · Modern Physics Letters A; (USA)

DOI:https://doi.org/10.1142/S0217732390001402· OSTI ID:6402808

Liang, C F; Peghaire, A ^[1]; Sheline, R K ^[2]

---

1. Centre de Spectrometrie Nucleaire et de Spectrometrie de Masse, Bat. 104-91406 Campus Orsay (FR)
2. Florida State Univ., Tallahassee, FL (USA)

Experimental data following the alpha decay of{sup 225}Ac are interpreted in terms of a spectroscopy in {sup 221}Fr consistent with octupole deformation. However, the measured E1 transition probabilities suggest that the low lying bands in {sup 221}Fr are considerably more mixed than in nuclei with slightly higher mass number. It is suggested that this mixing of states in {sup 221}Fr is indicative of the partial collapse of Nilsson-like orbitals into more degenerate shell model orbitals.

• OSTI ID: 6402808
• Journal Information: Modern Physics Letters A; (USA), Journal Name: Modern Physics Letters A; (USA) Vol. 5:16; ISSN 0217-7323; ISSN MPLAE
• Country of Publication: United States
• Language: English

Related Subjects

652020* -- Nuclear Properties & Reactions
A=220 & above
Experimental
653005 -- Nuclear Theory-- Radioactive Decay
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ACTINIDE ISOTOPES
ACTINIDE NUCLEI
ACTINIUM 225
ACTINIUM ISOTOPES
ALKALI METAL ISOTOPES
ALPHA DECAY
ALPHA DECAY RADIOISOTOPES
DATA
DAYS LIVING RADIOISOTOPES
DECAY
ELECTROMAGNETIC RADIATION
EXPERIMENTAL DATA
FRANCIUM 221
FRANCIUM ISOTOPES
HEAVY NUCLEI
INFORMATION
ISOTOPES
MASS
MINUTES LIVING RADIOISOTOPES
MULTIPOLES
NUCLEAR DECAY
NUCLEI
NUMERICAL DATA
OCTUPOLES
ODD-EVEN NUCLEI
RADIATIONS
RADIOISOTOPES
SPECTROSCOPY
TRANSITION RADIATION