Production of neutron-rich nuclei in fragmentation reactions of 132Sn projectiles at relativistic energies

Abstract

The fragmentation of neutron-rich 132Sn nuclei produced in the fission of 238U projectiles at 950 MeV/u has been investigated at the FRagment Separator (FRS) at GSI. This work represents the first investigation of fragmentation of medium-mass radioactive projectiles with a large neutron excess. The measured production cross sections of the residual nuclei are relevant for the possible use of a two-stage reaction scheme (fission+fragmentation) for the production of extremely neutron-rich medium-mass nuclei in future rare-ion-beam facilities. Moreover, the new data will provide a better understanding of the "memory" effect in fragmentation reactions.

5 pages, 3 figures

References in corpus (4)

• Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon
• Production of new neutron-rich isotopes of heavy elements in fragmentation reactions of ${}^{238}$U projectiles at 1 A GeV
• Isotopic and velocity distributions of Bi produced in charge-pickup reactions of 208Pb at 1 A GeV
• Production of medium-mass neutron-rich nuclei in reactions induced by 136Xe projectiles at 1 A GeV on a beryllium target

Cited by in corpus (6)

• Improved Empirical Parametrization of Fragmentation Cross Sections
• Dynamical properties and secondary decay effects of projectile fragmentation in 107,124Sn + 120Sn collisions at 600 MeV/nucleon
• Systematic reduction of the proton-removal cross section in neutron-rich medium-mass nuclei
• Systematic investigation of projectile fragmentation using beams of unstable B and C isotopes
• Yield estimation of neutron-rich rare isotopes induced by 200 MeV/u ${}^{132}$Sn beams by using GEANT4
• Fission of relativistic nuclei with fragment excitation and reorientation