Octupole instability induced by rotation in the nuclei 146,148Nd

doi:10.1016/0370-2693(88)90146-3

Physics Letters B

Volume 200, Issue 4, 21 January 1988, Pages 424-428

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Abstract

Levels in ^146,148Nd have been populated in the $^{150} Nd (α, α′ x n)$ reactions. Cascades of enhanced E1 transitions have been observed. $B(E 1) B(E 2)$ branching ratios, of the order of 10⁻⁶ fm⁻² as well as the presence of low energy negative-parity bands indicate strong octupole effects. Shell correction type calculations suggest an explanation in terms of octupole correlations at medium spins.

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¹: Permanent address: Institute of Experimental Physics, Warsaw University, PL-00681 Warsaw, Poland.

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Physics Letters B

Abstract

References (14)

Nucl. Phys. A

Phys. Lett. B

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Theory of complex nuclei

The structure of even deformed nuclei

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Phys. Rev. Lett.

Phys. Rev. Lett.

Sov. J. Phys.

Cited by (72)

Experimental evidences of shape co-existence in <sup>154</sup>Ho

Nuclear Data Sheets for A = 146

Nuclear data sheets for A = 148

Octupole excitations in <sup>141,144</sup>Cs and the pronounced decrease of dipole moments with neutron number in odd-Z neutron-rich <sup>141,143,144</sup>Cs

Nuclear data sheets for A = 148

Theoretical description of the octupole phase transition in Lanthanide nuclei at high spin