NewK=0Bands and Two-Phonon Gamma Vibrations inOs188andOs190

Abstract
The level structure of Os188 and Os190 has been investigated by the (p, t) reaction at 19.0-MeV proton energy. New 0+ states were seen at 1480 and 1705 keV in Os188 and at 1551 and 1734 keV in Os190. Additional evidence is presented for describing the lowest excited K=0 and K=4 bands as two-phonon γ vibrations.