Differential cross section polarised electrons

Fig. 8.2. Differential cross section for the elastic scattering of electrons on hydrogen. Circles, Williams (1975) solid curve, coupled-channels-optical calculation long-dashed curve, one channel with discrete polarisation potential only short-dashed curve, one channel without polarisation potential. Adapted from Bray et al. (1991h).

As discussed in the last chapter, electron—photon (e, e y) measurements yield much more information on the scattering process than simple inelastic differential cross section measurements. In particular the population of magnetic sublevels can be obtained, which can be visualised by the corresponding charge-cloud probability distribution (fig. 8.1). The set of parameters discussed in the last chapter must be enlarged when polarised... 

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