Multiplicity distributions in the eikonal and the $U$-matrix unitarization schemes

The multiplicity distribution of charged particles produced in the central rapidity ($\mathrm{\mid }\eta \mathrm{\mid }<2.5$) region is calculated for the eikonal and the $U$-matrix unitarization schemes using the AGK cutting rules and compared with the ATLAS 13 TeV data. The data favours the eikonal approach.