Gamma-decay of 172Yb after the (τ, τ) inelastic reaction

The γ-decay following the 172Yb (τ,τ) reactions with E τ = 45 MeV has been studied. Enhanced transitions with energies of E γ ∼ 1 MeV were found in the γ-decay pattern. Around 50% of this radiation consists of known transitions orginating from the 1-2 MeV region and feeding into the ground state band at low spins. However, unresolved γ-ray lines constitute a considerable fraction of the bump. The γ-decay from the highest excitation energies (E χ ∼ 5-8 MeV) is found to be well described taking into account the transition probability imposed by the giant dipole resonance