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Bochum 2009 – wissenschaftliches Programm

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HK: Fachverband Hadronen und Kerne

HK 26: Nuclear Structure and Dynamics I

HK 26.2: Gruppenbericht

Dienstag, 17. März 2009, 14:30–15:00, H-ZO 40

ISOLTRAPs 2008 harvest — •Martin Breitenfeldt — Ernst-Moritz-Arndt-Universität, Greifswald, Germany

With ISOLTRAP [1] at ISOLDE/CERN mass measurements on exotic nuclides are performed down to an accuracy below Δm/m=10−8. The obtained mass values are of importance for a number of applications, among others nuclear structure studies, test of mass models, and nucleosynthesis calculations. Recent measurements performed at ISOLTRAP help to examine the halo character of 17Ne [2] and the restoration of the neutron-shell gap at N=82 [3]. In addition, the determination of the mass of 81Zn [4] allowed detailed nucleosynthesis calulations in the vicinity of the waiting-point nuclide 80Zn. Furthermore, for the first time a new isotope was discovered in a Penning trap, namely 229Rn [5]. The new mass values of 223−229Rn as well as of 136−146Xe are entering in systematic δ Vpn studies of the interaction between the valence protons and valence neutrons.
M. Mukherjee et al., Eur. Phys. J. A 35, 1-29 (2008).
W. Geithner et al., in print Phys. Rev. Lett.
M. Dworschak et al., Phys. Rev. Lett. 100, 072501 (2008).
S. Baruah et al., in print Phys. Rev. Lett.
D. Neidherr et al., submitted.

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