  We present a detailed investigation of the azimuthal asymmetries and
acoplanarity in lepton pair production in ultraperipheral collisions (UPCs).
These observables provide a unique opportunity to test the SCET resummation
formalism, given the extremely high photon flux in UPCs, which enables precise
measurements of these processes. We improve the accuracy of the previous
calculations by including the soft photon contributions beyond the double
leading logarithm approximation. Notably, the single logarithm terms arising
from the collinear region are greatly enhanced by the small mass of the
leptons. Our findings demonstrate the accessibility of these sub-leading
logarithm resummation effects through the analysis of angular correlations in
lepton pairs produced in UPCs at the Relativistic Heavy Ion Collider (RHIC) and
the Large Hadron Collider (LHC).
