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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10304 - Nuclear physics

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

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

Name of the periodical

PHYSICAL REVIEW C

ISSN

2469-9985

e-ISSN

2469-9993

Volume of the periodical

106

Issue of the periodical within the volume

6

Country of publishing house

US - UNITED STATES

Number of pages

13

Pages from-to

1-13

UT code for WoS article

000905431500002

EID of the result in the Scopus database

2-s2.0-85146123237