Rotation induced octupole correlations in the neutron-deficient Te-109 nucleus

• High spin states in the neutron deficient nucleus 109Te have been populated with the 58Ni+54Fe reaction at 220 MeV and investigated through γ-spectroscopy methods at the GASP spectrometer making use of reaction channel selection with the ISIS Si-ball. The level scheme has been extended up to an excitation energy of ≈12.1 MeV. The spins and parities of the observed levels are assigned tentatively supporting the identification of two bands of opposite parity connected by strong dipole transitions inferred to be of E1 character. Octupole correlations in 109Te induced by rotation are suggested as the cause of this effect.

Nyckelord

Te-109

high spin

gamma-gamma-light charged particle coincidences

deduced levels

octupole correlations

High-Spin Spectroscopy

Shape Changes

Moments

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