Franklin, MelissaHuth, JohnMorii, Masahiro2023-03-222017-06ATLAS Collaboration. 2017. "Measurement of multi-particle azimuthal correlations in pp, p+Pb and low-multiplicity Pb+Pb collisions with the ATLAS detector." Eur Phys J C 77: 428 (2017)1434-60441434-6052https://nrs.harvard.edu/URN-3:HUL.INSTREPOS:37374649Multi-particle cumulants and corresponding Fourier harmonics are measured for azimuthal angle distributions of charged particles in pp collisions at s√ = 5.02 and 13 TeV and in p+Pb collisions at sNN‾‾‾‾√ = 5.02 TeV, and compared to the results obtained for low-multiplicity Pb+Pb collisions at sNN‾‾‾‾√ = 2.76 TeV. These measurements aim to assess the collective nature of particle production. The measurements of multi-particle cumulants confirm the evidence for collective phenomena in p+Pb and low-multiplicity Pb+Pb collisions. On the other hand, the pp results for four-particle cumulants do not demonstrate collective behaviour, indicating that they may be biased by contributions from non-flow correlations. A comparison of multi-particle cumulants and derived Fourier harmonics across different collision systems is presented as a function of the charged-particle multiplicity. For a given multiplicity, the measured Fourier harmonics are largest in Pb+Pb, smaller in p+Pb and smallest in pp collisions. The pp results show no dependence on the collision energy, nor on the multiplicity.en-USPhysics and Astronomy (miscellaneous)Engineering (miscellaneous)Journal Article2018-07-2020172023-03-2210.1140/epjc/s10052-017-4988-1