Evolution of nuclear structure through isomerism in Fr-216

Kód výsledku v IS VaVaI

RIV/68407700:21670/22:00358571 - isvavai.cz

Výsledek na webu

https://doi.org/10.1103/PhysRevC.105.034308

DOI - Digital Object Identifier

10.1103/PhysRevC.105.034308

Jazyk výsledku

angličtina

Název v původním jazyce

Evolution of nuclear structure through isomerism in Fr-216

Popis výsledku v původním jazyce

Three new isomers have been identified in the transitional odd-odd Fr-216 nucleus. The properties of the (11(+)) isomer with T-1/2 = 9.6(14) ns are compared with those of the similar isomeric states in neighboring doubly-odd nuclei. The experimental results are compared with predictions of shell-model calculations and a fair agreement is observed between the experimental and calculated excitation energies of the (11(+)) isomeric state and the states to which it decays. The deviation between the measured and calculated reduced transition probabilities suggests contribution from effects other than the single-particle degrees of freedom in these states. Evidence of two high-spin [J(pi) > (18(+))] isomers above 2.2 MeV excitation energy with T-1/2 = 7.8(14) and 89(9) ns is also presented. These isomers at high excitation energies reflect a pronounced change in the structure above the previously established level scheme, where moderate quadrupole collectivity and octupole correlations were evident.

Název v anglickém jazyce

Evolution of nuclear structure through isomerism in Fr-216

Popis výsledku anglicky

Three new isomers have been identified in the transitional odd-odd Fr-216 nucleus. The properties of the (11(+)) isomer with T-1/2 = 9.6(14) ns are compared with those of the similar isomeric states in neighboring doubly-odd nuclei. The experimental results are compared with predictions of shell-model calculations and a fair agreement is observed between the experimental and calculated excitation energies of the (11(+)) isomeric state and the states to which it decays. The deviation between the measured and calculated reduced transition probabilities suggests contribution from effects other than the single-particle degrees of freedom in these states. Evidence of two high-spin [J(pi) > (18(+))] isomers above 2.2 MeV excitation energy with T-1/2 = 7.8(14) and 89(9) ns is also presented. These isomers at high excitation energies reflect a pronounced change in the structure above the previously established level scheme, where moderate quadrupole collectivity and octupole correlations were evident.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10304 - Nuclear physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

PHYSICAL REVIEW C

ISSN

2469-9985

e-ISSN

2469-9993

Svazek periodika

105

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

000766661000002

EID výsledku v databázi Scopus

2-s2.0-85126696882