Competition between collective oblate rotation and non-collective prolate K isomerism in neutron-rich tungsten isotopes

Jiao, CF, Shi, Y, Xu, FR, Xu, FR, Sun, Y, Sun, Y, Walker, PM and Walker, PM (2012) Competition between collective oblate rotation and non-collective prolate K isomerism in neutron-rich tungsten isotopes Science China: Physics, Mechanics and Astronomy, 55 (9). pp. 1613-1617.

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Abstract

Recent experiments open up the possibility to investigate oblate rotation-aligned states and prolate high-K isomers in neutron-rich tungsten isotopes. In the present work, we perform the projected-shell-model calculations for A ̃ 190 tungsten nuclei. The W results are compared with experimental data. The observed 8+ isomer is assigned as a two-quasiproton Kφ = 8 configuration. Low-lying high-K four-quasiparticle states are predicted. Of particular interest is the prediction of the Kφ = 20+ state in 190,192W, which may form a long-lived spin trap. In competition with the prolate high-K states, rotational alignment leads to near-yrast collective oblate rotation. © Science China Press and Springer-Verlag Berlin Heidelberg 2012.

Item Type:	Article
Divisions :	Surrey research (other units)
Authors :	Jiao, CF, Shi, Y, Xu, FR, Xu, FR, Sun, Y, Sun, Y, Walker, PM and Walker, PM
Date :	September 2012
DOI :	10.1007/s11433-012-4824-4
Depositing User :	Symplectic Elements
Date Deposited :	28 Mar 2017 14:12
Last Modified :	24 Jan 2020 11:52
URI:	http://epubs.surrey.ac.uk/id/eprint/733644

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