Abstract
Multiple Coulomb excitation measurements on198, 200Hg have been performed with 5MeV/amu208Pb projectiles andB(E2)-values are determined for transitions between states up to spin 8+. In198Hg a reduction of theB(E2)-value for the yrast transition 8+→6+ by a factor of 3 as compared to the rigid rotor prediction is observed, which supports the earlier proposed idea that the ground state band is crossed between the 6+ and 8+ state by a weakly interactingvi 2/213 rotation aligned band. In each of the two nuclei,198Hg and200Hg, a state with a possibleI π=8+ assignment is observed, which is tentatively interpreted as the 8+ member of the ground state band.
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Supported by the Bundesminister für Forschung und Technologient
On leave of absence from Jagiellonian University, Krakow, Poland
The authors would like to thank the UNILAC crew for their continuous effort to produce intense and reliable208Pb beams, which made the present experiment possible.
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Günther, C., Hübel, H., Kleinrahm, A. et al. Multiple Coulomb excitation of198Hg and200Hg. Z Physik A 301, 119–123 (1981). https://doi.org/10.1007/BF01419240
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DOI: https://doi.org/10.1007/BF01419240