Shell model estimate of electric dipole moments in medium and heavy nuclei

Abstract

Abstract. Existence of the electric dipole moment (EDM) is deeply related with time-reversal invariance. The EDM of a diamagnetic atom is mainly induced by the nuclear Schiff moment. After carrying out the shell model calculations to obtain wavefunctions for Xe isotopes, we evaluate nuclear Schiff moments for Xe isotopes to estimate their atomic EDMs. We estimate the contribution from each single particle orbital for the Schiff moment. It is found that the contribution on the Schiff moment is very different from orbital to orbital.