Abstract (data abstract)

ALICE. We present and compare the charged-particle pseudorapidity densities for pp, p-Pb, and Pb-Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV measured over a wide pseudorapidity range (${-3.5 <\eta <5}$), using ALICE at the Large Hadron Collider. The distributions for p-Pb and Pb-Pb collisions are determined as a function of the centrality of the collisions, while results from pp collisions are reported for inelastic events with at least one charged particle at midrapidity. The charged-particle pseudorapidity densities are, under simple and robust assumptions, transformed to charged-particle rapidity densities. This allows for the calculation and the presentation of the evolution of the width of the rapidity distributions and of a lower bound on the Bjorken energy density, as a function of the number of participants in all three collision systems. We find a decreasing width of the particle production, and roughly a ten fold increase in the energy density, as the system size grows.

Table 1

Table 1

10.17182/hepdata.137818.v1/t1

$\frac{\mathrm{d}N}{\mathrm{d}\eta}$ versus $\eta$ for $x^{\pm}$ in $\mathrm{p}\mathrm{p}$ at $\sqrt{s}=5.023\,\mathrm{Te\!V}$
Table 2

Table 2

10.17182/hepdata.137818.v1/t2

$\frac{\mathrm{d}N}{\mathrm{d}\eta}$ versus $\eta$ for $x^{\pm}$ in $\mathrm{p}-\mathrm{Pb}$ at $\sqrt{s_{\mathrm{NN}}}=5.023\,\mathrm{Te\!V}$
Table 3

Table 3

10.17182/hepdata.137818.v1/t3

$\frac{\mathrm{d}N}{\mathrm{d}\eta}$ versus $\eta$ for $x^{\pm}$ in $\mathrm{Pb}-\mathrm{Pb}$ at $\sqrt{s_{\mathrm{NN}}}=5.023\,\mathrm{Te\!V}$
Table 4

Table 4

10.17182/hepdata.137818.v1/t4

$N_{\mathrm{ch}}^{\mathrm{tot}}$, $p_{\mathrm{T}}/m$, $\varepsilon_{\mathrm{LB}}^{\cap}\tau$, $\varepsilon_{\mathrm{LB}}^{\cup}\tau$, $N_{\mathrm{part}}$, $S_{\mathrm{T}}^{\cup}$, $S_{\mathrm{T}}^{\cap}$, $\sigma_{\mathrm{d}N/{\mathrm{d}y}}$ versus $\mathrm{Centrality}$ for $x^{\pm}$, $x_{\mathrm{primary}}$, $\mathrm{participant}$ in $\mathrm{p}\mathrm{p}$ at $\sqrt{s}=5.023\,\mathrm{Te\!V}$
Table 5

Table 5

10.17182/hepdata.137818.v1/t5

$N_{\mathrm{ch}}^{\mathrm{tot}}$, $p_{\mathrm{T}}/m$, $\varepsilon_{\mathrm{LB}}^{\cap}\tau$, $\varepsilon_{\mathrm{LB}}^{\cup}\tau$, $N_{\mathrm{part}}$, $S_{\mathrm{T}}^{\cup}$, $S_{\mathrm{T}}^{\cap}$, $\sigma_{\mathrm{d}N/{\mathrm{d}y}}$ versus $\mathrm{Centrality}$ for $x^{\pm}$, $x_{\mathrm{primary}}$, $\mathrm{participant}$ in $\mathrm{p}-\mathrm{Pb}$ at $\sqrt{s_{\mathrm{NN}}}=5.023\,\mathrm{Te\!V}$
Table 6

Table 6

10.17182/hepdata.137818.v1/t6

$N_{\mathrm{ch}}^{\mathrm{tot}}$, $p_{\mathrm{T}}/m$, $\varepsilon_{\mathrm{LB}}^{\cap}\tau$, $\varepsilon_{\mathrm{LB}}^{\cup}\tau$, $N_{\mathrm{part}}$, $S_{\mathrm{T}}^{\cup}$, $S_{\mathrm{T}}^{\cap}$, $\sigma_{\mathrm{d}N/{\mathrm{d}y}}$ versus $\mathrm{Centrality}$ for $x^{\pm}$, $x_{\mathrm{primary}}$, $\mathrm{participant}$ in $\mathrm{Pb}-\mathrm{Pb}$ at $\sqrt{s_{\mathrm{NN}}}=5.023\,\mathrm{Te\!V}$

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