TY - JOUR ID - TI - CORE-POLARIZATION EFFECTS ON E2 TRANSITIONS IN EXOTIC NUCLEUS 70Ni AU - ALI A. ABBAS AU - R. M. RAMADHAN AU - AMMAR A. AL-SA’AD PY - 2017 VL - 43 IS - 1A SP - 43 EP - 51 JO - Journal of Basrah Researches (Sciences) مجلة ابحاث البصرة ( العلميات) SN - 18172695 2411524X AB - The structure of 70Ni nucleus is studied by using Particle-Vibration Coupling Model (PVCM), whichseparates the nucleus into three systems, vibrating core and two interacting neutrons. The vibration of thecore is represented by single quadrupole phonon, and the two neutrons are assumed to occupy the state1g9/2 and interacted by MSDI. A very well reproduction for the positive parity states of 70Ni is obtained byapplying the PVCM. The core polarization effect that includes particle-hole excitation from the protonstates of the core, to the states outside the model space with 2ℏω, is very necessary to reproduce thereduced E2 transition probability.

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