Comments on MESO-m3c-defl

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	Comments on MESO-m3c-defl

This is a mesoscopic module that provides background information that less-informed reader needs to understand the calculation and discussion of the differential cross section: both the classical and the semiclassical differential cross section are `derived' from the deflection function, which in its turn depends on the potential.
The account on the deflection function is extracted from A08 (default) and A05. A general description of the idea and formula of the deflection function is derived from A06. The details of the derivation are included for completeness but hidden from first view, in order to preserve the flow of discourse in the module.