  We propose a new complete method, based on the Wigner distributions of
photons, how to calculate differential distributions of dileptons created via
photon-photon fusion in semicentral ($b<2R_A$) $AA$ collisions. The formalism
is used to calculate different distributions of invariant mass, dilepton
transverse momentum and acoplanarity for different regions of centrality. The
results of calculation are compared with recent STAR, ALICE and ATLAS
experimental data. Very good agreement with the data is achieved without free
parameters and without including additional mechanisms such as a possible
rescattering of leptons in the quark-gluon plasma.
