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GSI SCIENTIFIC REPORT 2008 NUSTAR-SHE-03 First Direct High-Precision Mass Measurements of Nobelium with SHIPTRAP

By M. Block, D. Ackermann, K. Blaum, S. Eliseev, T. Fleckenstein, E. Haettner, F. Herfurth, F. P. Heßberger, S. Hofmann, J. Ketelaer, J. Ketter, H. -j. Kluge, G. Marx, M. Mazzocco, N. Novikov, W. R. Plaß, A. Popeko, S. Rahaman, D. Rodríguez, C. Scheidenberger, P. G. Thirolf, G. K. Vorobjev and C. Weber


The study of the structure evolution of exotic nuclei far away from stability is at the forefront of nuclear physics. The region of the superheavy elements is of particular interest since an enhanced stability due to shell effects is observed. Several new elements up to Z = 118 have been synthesized [1, 2] and worldwide efforts exist to reach the next spherical shell closures predicted around Z ≈ 114 − 120 and N ≈ 184. However, for a successful synthesis of new elements and an understanding of the structure of superheavy elements accurate data on the properties of nuclides in the region Z> 100 such as half-lives, masses, and energies of excited states are crucial. High-precision mass measurements with Penning traps are a powerful method to investigate the nuclear structur

Year: 2010
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