6533b854fe1ef96bd12aed6a
RESEARCH PRODUCT
Improved measurement of the 02+→01+ E0 transition strength for 72Se using the SPICE spectrometer
J. SmallcombeA. B. GarnsworthyW. KortenP. SinghF. A. AliC. AndreoiuS. AnsariG. C. BallC. J. BartonS. S. BhattacharjeeM. BowryR. Caballero-folchA. ChesterS. A. GillespieG. F. GrinyerG. HackmanC. JonesB. MelonM. MoukaddamA. NanniniP. RuotsalainenK. StarostaC. E. SvenssonR. WadsworthJ. Williamssubject
isotoopitseleenispektroskopiaydinfysiikkadescription
The selenium isotopes lie at the heart of a tumultuous region of the nuclear chart where shape coexistence effects grapple with neutron-proton pairing correlations, triaxiality, and the impending proton drip line. In this work, a study of 72Se by internal conversion electron and γ-ray spectroscopy was undertaken with the SPICE and TIGRESS arrays. New measurements of the branching ratio and lifetime of the 02+ state were performed, yielding a determination of ρ2(E0;02+→01+)=29(3) milliunits. Two-state mixing calculations were performed that highlighted the importance of interpretation of such E0 strength values in the context of shape coexistence. peerReviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2022-01-01 |