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In this work we introduce small changes in the model proposed by E. Levin andD. Kharzeev for multiplicity distributions of particles produced inproton-proton collisions. We compare the predictions of the model with theavailable experimental data from the LHC. We also consider the most recentversion of the model proposed by E. Gotsman and E. Levin. These two versions ofthe model give a good description of the measured multiplicity distributions inthe central pseudo-rapidity region ($|\eta| < 0.5$). The agreement with data isnot so good when we consider the particles measured over a widerpseudo-rapidity interval ($|\eta| < 2.4$). Interestingly, the agreement becomesbetter when one selects events with higher transverse momentum ($p_T > 500$MeV).

Multiplicity distributions in the low x regime in a simple model