Microscopic structure of the one-phonon 2(+) states of Po-208
- Kalaydjieva, D.
- Kocheva, D.
- Rainovski, G.
- Karayonchev, V
- Jolie, J.
- Pietralla, N.
- Beckers, M.
- Blazhev, A.
- Dewald, A.
- Djongolov, M.
- Esmaylzadeh, A.
- Fransen, C.
- Gladnishki, K. A.
- Goldkuhle, A.
- Henrich, C.
- Homm, I
- Ide, K. E.
- John, P. R.
- Kern, R.
- Kleemann, J.
- Kroell, Th
- Muller-Gatermann, C.
- Scheck, M.
- Spagnoletti, P.
- Stoyanova, M.
- Stoychev, K.
- Werner, V
- Yaneva, A.
- Dimitrova, S. S.
- De Gregorio, G.
- Naidja, H.
- Gargano, A.
Publication date
January 2021
DOI Publisher
American Physical Society (APS)Abstract
The lifetimes of the 2(1)(+) and 4(1)(+) states of Po-208 were measured in the a-transfer reaction Pb-204(C-12, Be-8) Po-208 by gamma-ray spectroscopy utilizing the recoil distance Doppler shift method. The newly extracted transition strengths alongside ones of the decay of the 2(2)(+) state were compared to the results of large-scale shell-model calculations using an effective interaction derived from the realistic CD-Bonn nucleon-nucleon potential. The comparison indicates the importance of the quadrupole isovector excitations in the valence shell for a fine tuning of the two-body matrix elements of the shell-model interaction
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