High-spin states in neutron deficient 106Sn and 108Sn isotopes

Abstract High-spin states in 106 Sn and 108 Sn nuclei formed with the reaction 54 Fe + 58 Ni at 268 MeV have been investigated up to an excitation energy of 10 MeV. The experiment concerns γγ- coincidence, γ-ray angular distribution and γ-ray linear polarization. A deformed band above the J = 14 h level has been identified in 108 Sn which is of the same nature as the band seen in 110 Sn. No collective structures have been seen in 106 Sn indicating a strong dependence of the nuclear shape on the number of neutrons at high excitation energy.