Back to Search
Start Over
Nanosecond-Scale Proton Emission from Strongly Oblate-Deformed ^{149}Lu
- Source :
- Physical review letters. 128(11)
- Publication Year :
- 2021
-
Abstract
- Using the fusion-evaporation reaction ^{96}Ru(^{58}Ni,p4n)^{149}Lu and the MARA vacuum-mode recoil separator, a new proton-emitting isotope ^{149}Lu has been identified. The measured decay Q value of 1920(20) keV is the highest measured for a ground-state proton decay, and it naturally leads to the shortest directly measured half-life of 450_{-100}^{+170} ns for a ground-state proton emitter. The decay rate is consistent with l_{p}=5 emission, suggesting a dominant πh_{11/2} component for the wave function of the proton-emitting state. Through nonadiabatic quasiparticle calculations it was concluded that ^{149}Lu is the most oblate deformed proton emitter observed to date.
Details
- ISSN :
- 10797114
- Volume :
- 128
- Issue :
- 11
- Database :
- OpenAIRE
- Journal :
- Physical review letters
- Accession number :
- edsair.pmid.dedup....74cfc80f1b8bdbb948296b4321c9786b