Absence of Low-Energy Shape Coexistence in ^ 80 Ge: The Nonobservation of a Proposed Excited 0_ 2 ^ + Level at 639 keV.
Author | |
---|---|
Abstract |
:
The ^{80}Ge structure was investigated in a high-statistics β-decay experiment of ^{80}Ga using the GRIFFIN spectrometer at TRIUMF-ISAC through γ, β-e, e-γ, and γ-γ spectroscopy. No evidence was found for the recently reported 0_{2}^{+} 639-keV level suggested as evidence for low-energy shape coexistence in ^{80}Ge. Large-scale shell model calculations performed in ^{78,80,82}Ge place the 0_{2}^{+} level in ^{80}Ge at 2 MeV. The new experimental evidence combined with shell model predictions indicate that low-energy shape coexistence is not present in ^{80}Ge. |
Year of Publication |
:
2020
|
Journal |
:
Physical review letters
|
Volume |
:
125
|
Issue |
:
17
|
Number of Pages |
:
172501
|
Date Published |
:
2020
|
ISSN Number |
:
0031-9007
|
URL |
:
https://link.aps.org/abstract/PRL/v125/p172501
|
DOI |
:
10.1103/PhysRevLett.125.172501
|
Short Title |
:
Phys Rev Lett
|
Download citation |