Collective rotational transverse current multipoles: even-even nuclei

Abstract

We present a systematic study of transverse current multipoles of the ground-state band in even-even rare-earth nuclei. We analyze the q dependence of the form factors under different assumptions about the nature of the rotational mode. We show and compare numerical results of projected-Hartree-Fock and cranking model calculations for 154Sm, 156-158Gd, 164Dy, 166-168Er, and 174Yb. We discuss the dependence of the multipoles on the mean field used to generate the ground-state wave function. Finally, we compare to predictions of the rigid rotor and irrotational fluid flow models. Comparison to experiment is restricted to very low momentum transfer by lack of relevant data.