= GRW branch persistence versus geometric containment
{c}
A first localization near one macroscopically separated branch suppresses the other branch through the Gaussian <GRW localization operator>. This selects a correlated pointer alternative. However, if a region contains only packet centres and excludes substantial packet mass, the next centre need not lie in that region's small enlargement. Probabilities $|\alpha|^2$ for the first event and approximately one for the next require regions containing essentially all corresponding branch mass. The general <GRW collapse-centre event probabilities> retain the geometry exactly.
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