Gamma-ray emission probabilities in the decay of 177mLu

γγ-Ray emission probabilities from the decay of the long-lived (T1/2=160.44 d) isomeric state in 177mLu were measured with planar (LEPS) and coaxial Ge detectors. The isomer γ-rayγ-ray and β−β−-decay branching intensities were also determined. Measurements were carried out at low absolute efficiencies in order to minimize coincidence summing losses. The results are compared with the previous measurements.