E2 CORE POLARIZATION FOR sd-SHELL SINGLE-PARTICLE STATES CALCULATED WITH A SKYRME-TYPE INTERACTION
نویسنده
چکیده
We have studied the core-polarization effect on the IsOd-she11 single-particle electromagnetic quadrupole transitions due to coupling with the quadrupole giant resonances. The self-consistent Hartree-Fock + RPA method is applied for the calculations of the single-particle wave functions and the response functions of the giant resonances. The particle-vibration-coupling model is used to calculate the core-polarization effect in the vicinity of I60 and @%a. The effective coupling hamiltonian is determined by the SGII Skyrme-type interaction which is used in the HF+RPA and particle-vibration-coupling calculation. The results are discussed for the proton and neutron effective charges and for the longitudinal and transverse form factor for the Od&+ ls$ proton single-particle transition in 39K. Good agreement with recent longitudinal data for this transition is obtained.
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