Speaker
Mr
Dennis Neidherr
(Institut fur Physik - Johannes Gutenberg-Universitat Mainz)
Description
In August 2008 the masses of neutron rich Xe and Rn isotopes were measured at the tandem Penning trap mass spectrometer ISOLTRAP with a relative mass precision down to a 1x10-8. During this online period the masses of 143-146Xe and 223-229Rn were measured, many of them for the first time directly. In addition the short-lived nuclide 229Rn has been observed for the very first time and aside of its mass also a preliminary life-time measured has been performed. With these new mass values one can study the proton-neutron interaction deltaVpn and therefore get information about the nuclear structure like collectivity, the onset of deformation or the geometrical shapes in atomic nuclei [1]. The experimental results as well as the impact on the theoretical models will be presented.
[1] R.B. Cakirli et al, Phys. Rev. Lett. 94, 092501 (2005).
Primary author
Mr
Dennis Neidherr
(Institut fur Physik - Johannes Gutenberg-Universitat Mainz)
Co-authors
Dr
Alban Kellerbauer
(MPI Heidelberg)
Dr
Alexander Herlert
(CERN)
Ms
Burcu Cakirli
(Istanbul University)
Ms
Christine Boehm
(Institut fur Physik - Johannes Gutenberg-Universitat Mainz)
Dr
Dave Lunney
(CSNSM Orsay)
Dr
Dietrich Beck
(GSI Darmstadt)
Dr
Frank Herfurth
(GSI Darmstadt)
Prof.
Klaus Blaum
(MPI Heidelberg)
Prof.
Lutz Schweikhard
(Ernst Moritz Arndt Universitaet Greifswald)
Dr
Magdalena Kowalska
(CERN)
Mr
Marco Rosenbusch
(Ernst Moritz Arndt Universitaet Greifswald)
Mr
Martin Breitenfeldt
(Ernst Moritz Arndt Universitaet Greifswald)
Prof.
Rick Casten
(Yale University)
Ms
Sarah Naimi
(CSNSM Orsay)
Mr
Sebastian George
(Institut fur Physik - Johannes Gutenberg-Universitat Mainz)
Dr
Stefan Schwarz
(NSCL Michigan State)
