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Title: Production of new neutron-rich isotopes of heavy elements in fragmentation reactions of {sup 238}U projectiles at 1A GeV

Journal Article · · Physical Review. C, Nuclear Physics
; ; ; ; ;  [1];  [2]; ; ;  [3];  [4];  [5];  [2];  [6]
  1. Universidade de Santiago de Compostela, E-15782 Santiago de Compostela (Spain)
  2. IPN, IN2P3-CNRS, Universite Paris-Sud 11, UMR 8608, F-91406 Orsay (France)
  3. GSI Helmholtzzentrum fuer Schwerionenforschung GmbH, Planckstrasse 1, D-64291 Darmstadt (Germany)
  4. Forschungszentrum Dresden-Rossendorf, D-01328 Dresden (Germany)
  5. Universite Bordeaux I, CNRS/IN2P3, CENBG, BP 120, F-33175 Gradignan (France)
  6. GANIL CEA/DSM-CNRS/IN2P3, BP 55027, F-14076 Caen (France)

The production of heavy neutron-rich nuclei has been investigated using cold-fragmentation reactions of {sup 238}U projectiles at relativistic energies. The experiment performed at the high-resolving-power magnetic spectrometer Fragment Separator at GSI made it possible to identify 40 new heavy neutron-rich nuclei: {sup 205}Pt, {sup 207-210}Au, {sup 211-216}Hg, {sup 214-217}Tl, {sup 215-220}Pb, {sup 219-224}Bi, {sup 223-227}Po, {sup 225-229}At, {sup 230,231}Rn, and {sup 233}Fr. The production cross sections of these nuclei were also determined and used to benchmark reaction codes that predict the production of nuclei far from stability.

OSTI ID:
21421322
Journal Information:
Physical Review. C, Nuclear Physics, Vol. 82, Issue 4; Other Information: DOI: 10.1103/PhysRevC.82.041602; (c) 2010 The American Physical Society; ISSN 0556-2813
Country of Publication:
United States
Language:
English