Scaling of power corrections for angularities from dressed gluon exponentiation

We study power corrections to a recently introduced family of event shapes, the class of angularities, within the formalism of dressed gluon exponentiation (DGE). We find that the universal scaling rule for the leading power corrections deduced from resummation also holds when taking renormalon enhancements into account. The scaling is due to boost invariance of eikonal dynamics in the two-jet limit, which we recover in the context of DGE. Furthermore, dressed gluon exponentiation provides an ansatz for nonleading power corrections that violate the scaling. These nonleading corrections are further suppressed by noninteger powers of the hard scale.