Gießen 2007 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 12: Kernphysik / Spektroskopie
HK 12.3: Vortrag
Dienstag, 13. März 2007, 14:45–15:00, D
Recent high-accuracy mass measurements with ISOLTRAP — •M. Kowalska1, D. Beck2, K. Blaum1,2, M. Breitenfeldt3, S. George1, F. Herfurt2, A. Herlert4, A. Kellerbauer5, H.-J. Kluge2, D. Neidherr1, L. Schweikhard3, C. Yazidjian2, D. Lunney6, R. Savreux2, and S. Schwarz7 — 1Institut für Physik, Universität Mainz, Germany — 2GSI, Darmstadt, Germany — 3Institut für Physik, Universität Greifswald, Germany — 4CERN, Geneva, Switzerland — 5Max Planck Institute for Nuclear Physics, Heidelberg, Germany — 6CSNSM, Orsay, France — 7NSCL, MSU, East-Lansing, USA
The Penning trap mass spectrometer ISOLTRAP at ISOLDE/CERN is devoted to accurate mass measurements of short-lived nuclides. Recent mass measurements with a relative mass uncertainty in the order of 10−8 provide new data for tests of nuclear and astrophysical models. The 2006 results include masses of neutron-rich Ag, Mn, and Fe nuclei. Since Fe isotopes are not accessible directly at ISOLDE, we studied them with the in-trap decay method. In the talk we will present the physics interest of the above investigations, the experimental technique and setup, as well as the results and their implications.