Gaussian distribution, small spherical

This function is plotted for a selected value of (p and a in Fig. 6.20. This type of analysis can also be applied to interpret association into spherical or flat aggregates. The case of spherical micelles is considered (in a simplified form) in Section 4.6.5. The key difference compared with the case of cylindrical aggregates (Fig. 6.20) for spherical and disk-like micelles is that the distribution of micelle sizes does not extend to small aggregates in fact it can be described by a Gaussian distribution centred around a mean aggregation number. This is a consequence of the fact that monomers added above the cmc go to form new micelles. 

---