2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/134513Predictions for the pseudorapidity density of charged particles produced in Pb-Pb central collisions at $\sqrt{s_{NN}}=5.5$ TeV are presented. Particle production in such collisions is computed in the framework of k_t-factorization, using running coupling non-linear evolution to determine the transverse momentum and rapidity dependence of the nuclear unintegrated gluon distributions.1 figure replaced. References updatedHigh Energy Physics - Phenomenologytext