Physics – Nuclear Physics
Scientific paper
Nov 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aps..dnp.fg010b&link_type=abstract
American Physical Society, 2010 Fall Meeting of the APS Division of Nuclear Physics, November 2-6, 2010, abstract #FG.010
Physics
Nuclear Physics
Scientific paper
Recent experimental results on the nucleus 196Hg -- especially newly determined level spins and multipole mixing ratios of γ transitions between low-energy states -- show a good agreement with supersymmetrical predictions, describing 196Hg as the two-fermion, five-boson member of the supermultiplet around 194Pt. To complete the data of a previous 194Pt(α,2n) experiment, and to search for further low-lying low-spin states that might not be populated by that reaction, we chose to perform a new experiment on 196Hg. This time we approached 196Hg via β decay. We used a 35 MeV proton beam at the Wright Nuclear Structure Laboratory to induce the reaction 198Hg(p,3n)196Tl. Our target consisted of highly enriched 198HgS. One β decay branch populates preferably the low-spin states we are interested in. The 196Hg γ transitions were detected with the highly efficient YRAST Ball γ spectrometer. We present first preliminary results and discuss the description of the even-even mercury isotopes in the context of the nuclear structure supersymmetry. Supported by DFG grants Jo391/2-3, Jo391/3-2, and by U.S. DOE grant DE-FG02-91ER40609.
Ahmed Towfiq
Ahn Taehoon
Bernards C.
Deng Chao
Elvers Michael
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