| Αρχική Σελίδα > On the enhanced E1 transitions in the K = 3/2 parity doublet band in$^{223}$Ra |
| Published Articles | |
| Title | On the enhanced E1 transitions in the K = 3/2 parity doublet band in$^{223}$Ra |
| Author(s) | Mach, H (Warsaw, Inst. Nucl. Studies ; Uppsala U.) ; Lindroth, A (Uppsala U.) ; Ruchowska, E (Warsaw, Inst. Nucl. Studies) ; Kvasil, J (Charles U.) ; Fogelberg, B (Uppsala U.) ; Gulda, K (Warsaw, Inst. Nucl. Studies ; Warsaw U.) ; Aas, A J (Oslo U.) ; Borge, M J G (CSIC, Madrid) ; Grant, I S (Manchester U.) ; Hagebø, E (Oslo U.) ; Kurcewicz, W (Warsaw U.) ; Martinez, T (Valencia U., IFIC) ; Rubio, B (Valencia U., IFIC) ; Smith, J F (Liverpool U.) ; Steffensen, K (Oslo U.) ; Tain, J L (Valencia U., IFIC) ; Tengblad, O (CSIC, Madrid ; CERN) ; Thorsteinsen, T F (Bergen U.) |
| Publication | 2016 |
| In: | Eur. Phys. J. A 52 (2016) 172 |
| DOI | 10.1140/epja/i2016-16172-4 |
| Subject category | Nuclear Physics - Experiment |
| Abstract | We have applied the fast timing $ \beta\gamma\gamma (t)$ technique to remeasure lifetimes of selected states in$^{223}$Ra populated in the $ \beta^{-}$ decay of$^{223}$Fr. $ T_{1/2}=587(12)$ ps and 210(13)ps have been obtained for the $ 3/2^{-}$ and $ 5/2^{-}$ states at 50.1 and 79.7 keV, that are more accurate than the previous values of 630(70)ps and 166(55)ps, respectively. Our $ \vert D_{0}\vert$ value of 0.155(10)e·fm obtained for the $ K=3/2$ configuration together with the available values of $ \vert D_{0}\vert$ for the $ K=1/2$ and $ K=5/2$ parity doublet bands establish the configuration dependence of $ \vert D_{0}\vert$ at low spins in this nucleus. Results of theoretical calculations performed for$^{223}$Ra, using the quasiparticle-phonon model (QPM) with inclusion of the Coriolis coupling, reasonably well reproduce octupole correlations in this nucleus. |