Identification of 45 New Neutron-Rich Isotopes Produced by In-Flight Fission of a 238U Beam at 345 MeV/nucleon

Abstract

A search for new isotopes using in-flight fission of a 345 MeV/nucleon 238U beam has been carried out at the RI Beam Factory at the RIKEN Nishina Center. Fission fragments were analyzed and identified by using the superconducting in-flight separator BigRIPS. We observed 45 new neutron-rich isotopes: 71Mn, 73,74Fe, 76Co, 79Ni, 81,82Cu, 84,85Zn, 87Ga, 90Ge, 95Se, 98Br, 101Kr, 103Rb, 106,107Sr, 108,109Y, 111,112Zr, 114,115Nb, 115,116,117Mo, 119,120Tc, 121,122,123,124Ru, 123,124,125,126Rh, 127,128Pd, 133Cd, 138Sn, 140Sb, 143Te, 145I, 148Xe, and 152Ba.

References in corpus (1)

• Spectroscopy of 32Ne and the Island of Inversion

Cited by in corpus (7)

• Observation of isotonic symmetry for enhanced quadrupole collectivity in neutron-rich 62,64,66Fe isotopes at N=40
• Production of new neutron-rich isotopes of heavy elements in fragmentation reactions of ${}^{238}$U projectiles at 1 A GeV
• Current Status and Future Potential of Nuclide Discoveries
• Clusters in Light Nuclei
• The asymmetry term in the nuclear-matter incompressibility from measurements on the giant monopole resonance: An Update
• Cluster radioactivity in ${}^{114}$Ba in the HFB theory
• Thick-target transmission method for excitation functions of interaction cross sections