[en] Short communication. 4 refs

[en] Short communication

[en] Short communication. 4 refs., 1 fig

[en] Treating the energy of the 2₁⁺ state in even Z- even N nuclei as a sum of rotational energy (ROTE) and vibrational energy (VIBE), the evolution of the shape transition with the increase in the valence nucleon pairs product (N_pN_n) is studied via the variation of ROTE/E(2₁⁺). The correspondence of relative ROTE, B(E2)↑ and (β_def/β_s.p.) values vs. the N_pN_n product is illustrated. A correlation of the rotation-vibration interaction constant in the ground band levels with the 0_β⁺ energy is also derived. Comparison is made with variable moment of inertia model expressions. (orig.)

[en] The semi-microscopic pairing plus quadrupole mode of Kumar-Baranger, predicts the existence of g, β, γ and multiphonon bands. Here the study is limited to the K^φ=4+ bands in ^158-164Dy

[en] Short communication. 1 ref

[en] Short communication. 5 refs., 2 tabs

[en] In the A=100 region, the deformed subshell gap at N=60 plays an important role in the shape transition of the nuclei for Sr-Zr-Mo. While shape transition for Sr and Zr is sharp at N=60, reinforced by the Z=38 and Z=40 subshells gaps, in Mo the shape transition is relatively smooth. In Mo isotopes levels of g-band and γ-band go down with increase in neutron number (N=56-64) but the O_β state goes up from N=60 to N=64

[en] The separation of β-band from the γ-band varies with neutron number in Er isotopes, being largest for ¹⁶⁶Er. The band structure of ¹⁶²Er in IBM-1 has been studied

[en] Short communication. 4 refs., 2 tabs