New collective structures in Au-179 and their implications for the triaxial deformation of the Pt-178 core

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21670%2F22%3A00364002" target="_blank" >RIV/68407700:21670/22:00364002 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1103/PhysRevC.106.064324" target="_blank" >https://doi.org/10.1103/PhysRevC.106.064324</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1103/PhysRevC.106.064324" target="_blank" >10.1103/PhysRevC.106.064324</a>

Jazyk výsledku

angličtina

Název v původním jazyce

New collective structures in Au-179 and their implications for the triaxial deformation of the Pt-178 core

Popis výsledku v původním jazyce

The extremely neutron-deficient isotope Au-179 has been studied by a combination of in-beam gamma-ray and isomeric-decay spectroscopy. For in-beam spectroscopy, the recoil-isomer tagging technique was employed, using the known 3/2(-), T-1/2 = 328 ns isomer. A new rotational band, associated with the unfavored signature band of the 1h(9/2) (R) 2 f(7/2) proton-intruder configuration, was revealed. A previously unknown, high-spin isomeric state with an excitation energy of 1743(17) keV and T-1/2 = 2.16(8) mu s was discovered. Five decay paths were identified, some of them feeding previously unknown non-yrast excited states, associated with the 1i(13/2) proton-intruder configuration. Calculations based on the particle-plus-triaxial-rotor model were performed to interpret the data. On the basis of these calculations, the new 1h(9/2) (R) 2 f(7/2) rotational band is interpreted as due to triaxial deformation of the underlying configuration with 132 ti 0.26 and gamma approximate to 27 degrees. Observed non-yrast states of the positive-parity 1i(13/2) intruder configuration are interpreted as due to triaxial deformation with beta(2) approximate to 0.26 and gamma approximate to 20 degrees.

Název v anglickém jazyce

New collective structures in Au-179 and their implications for the triaxial deformation of the Pt-178 core

Popis výsledku anglicky

The extremely neutron-deficient isotope Au-179 has been studied by a combination of in-beam gamma-ray and isomeric-decay spectroscopy. For in-beam spectroscopy, the recoil-isomer tagging technique was employed, using the known 3/2(-), T-1/2 = 328 ns isomer. A new rotational band, associated with the unfavored signature band of the 1h(9/2) (R) 2 f(7/2) proton-intruder configuration, was revealed. A previously unknown, high-spin isomeric state with an excitation energy of 1743(17) keV and T-1/2 = 2.16(8) mu s was discovered. Five decay paths were identified, some of them feeding previously unknown non-yrast excited states, associated with the 1i(13/2) proton-intruder configuration. Calculations based on the particle-plus-triaxial-rotor model were performed to interpret the data. On the basis of these calculations, the new 1h(9/2) (R) 2 f(7/2) rotational band is interpreted as due to triaxial deformation of the underlying configuration with 132 ti 0.26 and gamma approximate to 27 degrees. Observed non-yrast states of the positive-parity 1i(13/2) intruder configuration are interpreted as due to triaxial deformation with beta(2) approximate to 0.26 and gamma approximate to 20 degrees.

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

106

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1-13

Kód UT WoS článku

000905431500002

EID výsledku v databázi Scopus

2-s2.0-85146123237