1. Investigation of 0+ states in mercury isotopes after two-neutron transfer
- Author
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Bernards C., Casten R.F., Werner V., von Brentano P., Bucurescu D., Graw G., Heinze S., Hertenberger R., Jolie J., Lalkovski S., Meyer D.A., Mücher D., Pejovic P., Scholl C., and Wirth H.-F.
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Physics ,QC1-999 - Abstract
Using the high-resolution Q3D magnetic spectrograph at the Maier-Leibnitz Laboratory (MLL) Tandem accelerator in Munich, we studied 0+ excitations in the mercury isotopes 198Hg, 200Hg, and 202Hg after two-neutron transfer. We only observed 4-6 excited 0+ states per nucleus up to about 3-MeV excitation energy, far fewer than in other experiments of this (p, t) campaign. The results reveal a sharp drop in the number of low-lying 0+ states towards the 208Pb shell closure. We discuss the low-energy 0+ state density as a function of the valence nucleon number Nval. The 0+ excitation energies and the measured (p, t) transfer cross sections indicate a structural change throughout the Hg isotopes, with the most notable result being the peaking in the cross section of the low-lying excited 02+ state in 200Hg.
- Published
- 2014
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