E. Teruya

Neutrinoless Double-beta Decay Rates Around Mass 80 In The Nuclear Shell Model

We carry out the nuclear shell model calculations for nuclei with

Schiff Moments Of Xe Isotopes In The Nuclear Shell Model

A=76

Shell Model Calculation Of Nuclei Around 208Pb

and

Nuclear electric dipole moments for the lowest1/2+states in Xe and Ba isotopes

A=82

Nuclear Schiff moments for the lowest1/2+states in Xe isotopes

, and the energy levels are compared with the experimental data for nuclei with

High-spin structures in Xe 132 and Xe 133 and evidence for isomers along the N=79 isotones

A=82

Shell-model calculations of nuclei around mass 130

. We then estimate the nuclear matrix element (NME) for the

Large-scale shell-model calculations of nuclei around mass 210

0\nu\beta\beta

Shell Model Estimate of Electric Dipole Moments for Xe Isotopes

decay by using the ground state wavefunctions. In order to investigate the model dependence of the NMEs, the pair-truncated shell model calculations are performed and the NMEs in terms of the wavefunctions are also calculated. It is found that the NMEs are considerably different in the models, although the number occupancies in the ground states of the parent and the daughter nuclei are almost unchanged.

Erratum: Nuclear Schiff moments for the lowest1/2+states in Xe isotopes [Phys. Rev. C87, 044332 (2013)]

The existence of the permanent electric dipole moment of a fundamental particle implies violation of time reversal invariance. The electric dipole moment of a paramagnetic neutral atom is mainly induced by the nuclear Schiff moment. In this study the Schiff moments induced by the interaction which violates parity and time reversal invariance are calculated for various Xe isotopes using the shell-model wavefunctions. The contributions to the Schiff moment from one-particle and onehole excitations turn out to be very different from orbital to orbital. It is also found that the contributions from the core excitations are larger than other particle-hole contributions.