Lifetime measurements in 206 Po with a shell-model interpretation

Karayonchev, V.; Jolie, J.; Bittner, D.; Beckers, M.; Esmaylzadeh, A.; Fischer, J.; Fransen, C.; Garbe, J.; Knafla, L.; Lakenbrink, C. -D.; Ley, M.

doi:10.1103/physrevc.108.054302

DOE OSTI · 2526247

Lifetime measurements in 206 Po with a shell-model interpretation

Karayonchev, V.·Jolie, J.·Bittner, D.·Beckers, M.·Esmaylzadeh, A.·Fischer, J.·Fransen, C.·Garbe, J.·Knafla, L.·Lakenbrink, C. -D.·Ley, M.

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Abstract

The lifetimes of the first excited 2⁺ and 4⁺ states in 206 Po were measured using the recoil-distance Dopplershift method. The experimental results were compared to large-scale shell-model calculations that describe the deduced transition probabilities well. Those calculations were extended to the neighboring 204,208 Po isotopes giving a good overall description of the yrast states. However, the calculations underpredict the energies of the 6+1 and 8+1 states, which suggests that further improvement of the proton-neutron interaction is required.

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190 ≤ A ≤ 219 73 NUCLEAR PHYSICS AND RADIATION PHYSICS Electromagnetic transitions lifetimes & widths shell model

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Karayonchev, V., Jolie, J., Bittner, D., Beckers, M., Esmaylzadeh, A., Fischer, J., Fransen, C., Garbe, J., Knafla, L., Lakenbrink, C. -D., Ley, M.. 2023-11-02. Lifetime measurements in 206 Po with a shell-model interpretation. https://doi.org/10.1103/physrevc.108.054302

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