On the Kπ = 0+ rotational bands in the 178Hf nucleus

The results obtained by studying the angular distributions of gamma rays with respect to the neutron-beam axis in the reaction 178Hf(n, n′γ) involving the deexcitation of the Kπ = 0+ rotational bands of 178Hf are presented.New information about themultipole-mixing parameter δ in gamma transitions from the levels of these bands is obtained. The Kπ = 04+ band is constructed anew. The relationship between the parameter δ for the (2+0n−2+01) gamma transition and the energy gap Δn = Elev(2+0n) − Elev(0+0n), on one hand, and the quasiparticle structure of the rotational band, on the other hand, is discussed for 178Hf on the basis of the quasiparticle-phonon model.