Differential cross sections for exclusive $\ggmm$ production measured by ALICE in \pPb UPCs at \eightsixteen, as a function of \mmm, for $2.5 < y < 3.25$ (left) and $3.25 < y < 4$ (right). The vertical error bars represent the statistical and systematic uncertainties summed in quadrature. The results are compared with the prediction from \starlight  and from \superchic .