Speaker
Description
Measurement of charge-independent and charge-dependent two-particle number correlations ($R_{2}$) and transverse momentum correlations ($P_{2}$) provide key information about particle production mechanism, diffusivity, conservation of charge and momentum in high-energy collisions. These observables are measured
in pp collisions at $\sqrt{\textit{s}}$ = 13 TeV within transverse
momentum range of 0.2 $\leq$ $\textit{p}_{\rm T}$ $\leq$ 2.0
$\rm{GeV}/\textit{c}$, to better understand the jet contribution and
nature of collectivity in small systems. The shapes of $R_2$ and
$P_2$ on the near- and away-side are qualitatively similar but
quantitatively different. Moreover, the narrower width of $P_2$
compared to $R_2$ is also observed in pp collisions, as in the recently published ALICE results in p--Pb and Pb--Pb collisions. These results served as a baseline for p--Pb and Pb--Pb results, as they are sensitive to the interplay between the underlying event and mini-jets in pp collisions.
