Tidal waves in ${}^{102}\mathrm{Pd}$: A phenomenological analysis

Rotational and electromagnetic properties of the yrast band in ${}^{102}\mathrm{Pd}$ are analyzed in terms of a phenomenological phonon model that includes anharmonic terms. Both the moment of inertia and $B\left(E2\right)$'s are well reproduced by the model, providing an independent confirmation of the multiphonon picture recently proposed. The (empirical) dependence of the phonon-phonon interaction on the phonon frequency, in Ru, Pd, and Ru isotopes, follows the expectations from particle-vibration coupling.

Figure 1

Top: Moment of inertia in the yrast band in ${}^{102}\mathrm{Pd}$ and the results of Eq. (5). Bottom: $B\left(E2\right)$ values and Eq. (6). The harmonic and rotational limits are shown in dashed and dotted lines.

Figure 2

Phonon-phonon interaction $\left(V_2\right)$ vs. frequency $\left(\hslash {\omega }_0\right)$ for Ru, Pd, and Cd isotopes. The lines are expectations from particle-vibration coupling models, solid line Ref. [9] and dashed line Ref. [10].