Study of Multiphonon γγ-band of ¹⁵⁴Gd through Modified Soft Rotor Formula

Abstract

The structure of multiphonon band of 154 Gd nucleus is investigated by using the Modified Soft Rotor Formula (MSRF). The positive values of the moment of inertia and small values of softness parameter are obtained. The calculated value of moment of inertia of γγ-band is almost equal to the moment of inertia of γ-band, which indeed should be equal to the moment of inertia of the ground band. The constant energy parameter EK in the MSRF formula is also illustrated for K=2 βγ-band and K=4 γγ-band. The staggering pattern in the multiphonon γγ-band is also discussed in detail. The study of one-phonon K=2 γ-band, two-phonon K=2 βγ-band and K=4 γγ-band using MSRF formula yield good energy values.