Long-range correlations in low-multiplicity pp collisions at $\sqrt{s}=13\mathrm{T}\mathrm{e}\mathrm{V}$

In these proceedings, the measurements of the long-range near-side yields of charged hadrons in low-multiplicity proton–proton collisions at \thirteen are presented. The investigation studies pairs of charged particles within $1.4<\mathrm{\mid }\mathrm{\Delta }\eta \mathrm{\mid }<1.8$ and $1<p_{\mathrm{T}}<2\mathrm{G}\mathrm{e}\mathrm{V}\mathrm{/}c$, exploring the charged-particle multiplicity dependence of these observables at mid-rapidity. The analysis extends the previous studies of two-particle correlations in hadronic collisions by exploring the lowest multiplicity region ever investigated, where the formation of a strongly-interacting medium is less likely. By comparing the results with those obtained in ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ collisions at $\sqrt{s}=91\mathrm{G}\mathrm{e}\mathrm{V}$, the role of the ${\mathrm{e}}^{+}{\mathrm{e}}^{-}$ collision mechanisms in the emergence of collective-like phenomena in small systems can be constrained. The study provides new insights into the origin of long-range correlations in proton-proton collisions.