Nuclear Models in Quantum Chemistry

In this section we consider those applications of nuclear charge density distributions which are common practice in electronic structure calculations. We start with the electrostatic potentials resulting from the use of the most popular nuclear models, and continue with standard applications in electronic structure calculations. In the following we consider four popular nuclear models, 

the uniform spherical shell or top slice distribution (label T ) with radial parameter R = a (see Sect. 4.2), 

the homogeneous or uniform distribution (label H ) with radial 

the Gaussian distribution (label G ) with radial parameter Rq = y/2/Za (see Sect. 4.4), 

In the case of the Fermi-type distribution, the additional parameter b must be determined. This can be done in a general way, either by taking the ratio t/a with the fixed empirical value t = 2.3 fin [37] for given o, or by choosing b and t so that their values correspond to the maximum shown in Fig. 4 (this second method applies for all light nuclei up to and including boron, Z = 5, A = 11, where the first method gives t a) 

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