Abstract
An expression for the transition charge density is investigated where the deformation in nuclear collective modes is taken into consideration besides the shell model transition density. The inelastic longitudinal form factors C2 calculated using this transition charge density with excitation of the levels for Cr54,52,50 nuclei. In this work, the core polarization transition density is evaluated by adopting the shape of Tassie model together with the derived form of the ground state two-body charge density distributions (2BCDD's). It is noticed that the core polarization effects which represent the collective modes are essential in obtaining a remarkable agreement between the calculated inelastic longitudinal F(q)'s and those of experimental data.
Highlights
Charge density distributions, transition densities and form factors are considered as fundamental characteristics of the nucleus
Effects out of the model space, which is called core polarization effects, are necessary to be included in the calculations
Core polarization effects can be treated either by connecting the ground state to the J-multipole n ω giant resonances [4], where the shape of the transition densities for these excitations is given by Tassie model
Summary
Transition densities and form factors are considered as fundamental characteristics of the nucleus. These quantities are usually determined experimentally from the scattering of high energy electrons by the nucleus. Core polarization effects can be treated either by connecting the ground state to the J-multipole n ω giant resonances [4], where the shape of the transition densities for these excitations is given by Tassie model [5], or by using a microscopic theory [6,7,8] which permits one particle-one hole (1p-1h) excitations of the core and of the model space to describe these longitudinal excitations
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