Coexistence of collective oblate and superdeformed prolate shapes in 196Pb

P J Dagnall; C W Beausang; P Fallon; P D Forsyth; E S Paul; J F Sharpey-Schafer; P J Twin; I Ali; D M Cullen; M J Joyce; G Smith; R Wadsworth; R M Clark; P H Regan; A Astier; M Meyer; N Redon

doi:10.1088/0954-3899/19/3/014

Journal of Physics G: Nuclear and Particle Physics

Coexistence of collective oblate and superdeformed prolate shapes in ¹⁹⁶Pb

P J Dagnall¹, C W Beausang¹, P Fallon¹, P D Forsyth¹, E S Paul¹, J F Sharpey-Schafer¹, P J Twin¹, I Ali¹, D M Cullen¹, M J Joyce¹, G Smith¹, R Wadsworth¹, R M Clark¹, P H Regan¹, A Astier¹, M Meyer¹ and N Redon¹

Published under licence by IOP Publishing Ltd
Journal of Physics G: Nuclear and Particle Physics, Volume 19, Number 3 Citation P J Dagnall et al 1993 J. Phys. G: Nucl. Part. Phys. 19 465 DOI 10.1088/0954-3899/19/3/014

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¹ Oliver Lodge Lab., Liverpool Univ., UK

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Abstract

The ¹⁹⁶Pb nucleus was populated via the ¹⁸⁴W(¹⁶O,4n)¹⁹⁶Pb and ¹⁸⁶W(¹⁶O,6n)¹⁹⁶Pb reactions at beam energies of 98 MeV and 120 MeV, respectively. A new Delta I=1 magnetic dipole band has been observed. This band is believed to be built on a collective oblate configuration involving high-K proton orbitals coupled to two rotationally aligned i_13/2 neutrons. The previously observed ¹⁹⁶Pb superdeformed band was also populated in these reactions.

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