https://doi.org/10.1140/epja/i2016-16278-7
Regular Article - Experimental Physics
Synthesis of new transuranium isotopes in multinucleon transfer reactions using a velocity filter
1
GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291, Darmstadt, Germany
2
II. Physikalisches Institut, Justus-Liebig-Universität Gießen, 35392, Gießen, Germany
3
Manipal Centre for Natural Sciences, Manipal University, 576014, Manipal, Karnataka, India
4
Lawrence Livermore National Laboratory, 94551, Livermore, CA, USA
5
Helmholtz-Institut Mainz, 55099, Mainz, Germany
6
Japan Atomic Energy Agency, 319-1195, Tokai Ibaraki, Japan
7
Joint Institute for Nuclear Research, 141980, Dubna, Russia
* e-mail: s.heinz@gsi.de
Received:
31
May
2016
Accepted:
26
July
2016
Published online:
13
September
2016
Recently, we reported the observation of several new isotopes with proton numbers 
in low-energy collisions of 48Ca + 248Cm . The peculiarity is that the nuclei were produced in multinucleon transfer reactions, a method which is presently discussed as a possible new way to enter so far unknown regions in the upper part of the Chart of Nuclides. For separation of the transfer products we used a velocity filter, the Separator for Heavy Ion Reaction Products SHIP at GSI. The resulting strong background suppression allowed us to detect nuclei with cross-sections down to the sub-nanobarn scale. Beside the new isotopes we identified about 100 further target-like transfer products and determined their cross-sections. The results together with previous measurements strongly indicate that multinucleon transfer reactions are a viable pathway to the production of new transuranium isotopes.
© SIF, Springer-Verlag Berlin Heidelberg, 2016
