Correlation between multiparticle cumulants and mean transverse momentum in small collision systems with the CMS detector

Correlations between multiparticle cumulants and mean transverse momentum in proton-proton (pp), proton-lead (pPb) and peripheral lead-lead (PbPb) collisions are presented as a function of charged-particle multiplicity. The data, corresponding to integrated luminosities of 28.6 $\textrm{pb}^{-1}$ for pp at $\sqrt{s}=13$ TeV, 186 $\textrm{nb}^{-1}$ for pPb at $\sqrt{{s_{_{\mathrm{NN}}}}}=8.16$ TeV, and 0.58 $\textrm{nb}^{-1}$ for PbPb at $\sqrt{{s_{_{\mathrm{NN}}}}}=5.02$ TeV, were collected using the CMS detector at the LHC. The two- and four-particle cumulants for the second- and third-order Fourier harmonics are correlated with the mean transverse momentum on an event-by-event basis. Sign changes are observed when using two-particle cumulants in pp and pPb systems. No sign change is observed as pseudorapidity gaps between the two subevents increase. Predictions based on color-glass condensate and hydrodynamic models are compared to the experimental results.