Discovery and cross-section measurement of neutron-rich isotopes in the element 
range from neodymium to platinum with the FRS

Kurcewicz, J.; Farinon, F.; Geissel, H.; Pietri, S.; Nociforo, C.; Prochazka, A.; Weick, H.; Winfield, J.S.; Estradé, A.; Allegro, P.R.P.; Bail, A.; Bélier, G.; Benlliure, J.; Benzoni, G.; Bunce, M.; Bowry, M.; Caballero-Folch, R.; Dillmann, I.; Evdokimov, A.; Gerl, J.; Gottardo, A.; Gregor, E.; Janik, R.; Kelić-Heil, A.; Knöbel, R.; Kubo, T.; Litvinov, Y. A.; Merchan, E.; Mukha, I.; Naqvi, F.; Pfützner, M.; Pomorski, M.; Podolyákh, Zs.; Regan, P.H.; Riese, B.; Ricciardi, M.V.; Scheidenberger, C.; Sitar, B.; Spiller, P.; Stadlmann, J.; Strmen, P.; Sun, B.; Szarka, I.; Taïeb, J.; Terashima, S.; Valiente-Dobón, J.J.; Winkler, M.; Woods, Ph.

doi:10.1016/j.physletb.2012.09.021

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Discovery and cross-section measurement of neutron-rich isotopes in the element range from neodymium to platinum with the FRS

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Litvinov, Y. A.
GSI Helmholtzzentrum für Schwerionenforschung;
Division Prof. Dr. Klaus Blaum, MPI for Nuclear Physics, Max Planck Society;

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http://dx.doi.org/10.1016/j.physletb.2012.09.021
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Citation

Kurcewicz, J., Farinon, F., Geissel, H., Pietri, S., Nociforo, C., Prochazka, A., et al. (2012). Discovery and cross-section measurement of neutron-rich isotopes in the element range from neodymium to platinum with the FRS. Physics Letters B, 717(4-5), 371-375. doi:10.1016/j.physletb.2012.09.021.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-1A32-2

Abstract

Abstract:Using the high-resolution performance of the fragment separator FRS at GSI we have discovered 60 new neutron-rich isotopes in the atomic number range of 60⩽Z⩽78. The new isotopes were unambiguously identified in reactions with a ²³⁸U beam impinging on a Be target at 1 GeV/nucleon. The production cross-section for the new isotopes have been measured down to the pico-barn level and compared with predictions of different model calculations. For elements above hafnium fragmentation is the dominant reaction mechanism which creates the new isotopes, whereas fission plays a dominant role for the production of the new isotopes up to thulium.