Monte Carlo Glauber model with meson cloud: predictions for 5.44 TeV Xe+Xe collisions

We study, within the Monte-Carlo Glauber model, centrality dependence of the midrapidity charged multiplicity density $d{N}_{ch}\mathrm{/}d\eta$ and of the anisotropy coefficients ${\epsilon }_{2,3}$ in Pb+Pb collisions at $\sqrt{s}=5.02$ TeV and in Xe+Xe collisions at $\sqrt{s}=5.44$ TeV. Calculations are performed for versions with and without nucleon meson cloud. The fraction of the binary collisions, $\alpha$, has been fitted to the data on $d{N}_{ch}\mathrm{/}d\eta$ in Pb+Pb collisions. We obtain $\alpha \approx 0.09(0.13)$ with (without) meson cloud. The effect of meson cloud on the $d{N}_{ch}\mathrm{/}d\eta$ is relatively small. For Xe+Xe collisions for $0$-$5$% centrality bin we obtain $d{N}_{ch}\mathrm{/}d\eta \approx 1149$ and $1134$ with and without meson cloud, respectively. We obtain ${\epsilon }_2(Xe)\mathrm{/}{\epsilon }_2(Pb)\sim 1.45$ for most central collisions, and ${\epsilon }_2(Xe)\mathrm{/}{\epsilon }_2(Pb)$ close to unity at $c\gtrsim 20$%. We find a noticeable increase of the eccentricity in Xe+Xe collisions at small centralities due to the prolate shape of the Xe nucleus. The triangularity in Xe+Xe collisions is bigger than in Pb+Pb collisions at $c\lesssim 70$%. We obtain ${\epsilon }_3(Xe)\mathrm{/}{\epsilon }_3(Pb)\sim 1.3$ at $c\lesssim 1$%.