A1 Journal article (refereed)
Normal and intruder configurations in 34Si populated in the β- decay of 34Mg and 34Al (2019)


IDS Collaboration. (2019). Normal and intruder configurations in 34Si populated in the β- decay of 34Mg and 34Al. Physical Review C, 100(3), Article 034306. https://doi.org/10.1103/PhysRevC.100.034306


JYU authors or editors


Publication details

All authors or editorsIDS Collaboration

Journal or seriesPhysical Review C

ISSN2469-9985

eISSN2469-9993

Publication year2019

Volume100

Issue number3

Article number034306

PublisherAmerican Physical Society

Publication countryUnited States

Publication languageEnglish

DOIhttps://doi.org/10.1103/PhysRevC.100.034306

Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/65706

Web address of parallel published publication (pre-print)https://arxiv.org/abs/1908.11626


Abstract

The structure of 34Si was studied through γ spectroscopy separately in the β− decays of 34Mg and 34Al at the ISOLDE facility of CERN. Different configurations in 34Si were populated independently from the two recently identified β-decaying states in 34Al having spin-parity assignments Jπ=4− dominated by the normal configuration π(d5/2)−1⊗ν(f7/2) and Jπ=1+ by the intruder configuration π(d5/2)−1⊗ν(d3/2)−1(f7/2)2. The paper reports on spectroscopic properties of 34Si such as an extended level scheme, spin and parity assignments based on log(ft) values and γ-ray branching ratios, absolute β feeding intensities, and neutron emission probabilities. A total of 11 newly identified levels and 26 transitions were added to the previously known level scheme of 34Si. Large scale shell-model calculations using the SDPF-U-MIX interaction, able to treat higher order intruder configurations, are compared with the new results and conclusions are drawn concerning the predictive power of SDPF-U-MIX, the N=20 shell gap, the level of mixing between normal and intruder configurations for the 0+1, 0+2, and 2+1 states, and the absence of triaxial deformation in 34Si.


Keywordsnuclear physics


Contributing organizations


Ministry reportingYes

Reporting Year2019

JUFO rating2


Last updated on 2024-08-01 at 17:33