Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Measurement of multi-particle azimuthal correlations in $pp$, $p$+Pb and
  low-multiplicity Pb+Pb collisions with the ATLAS detector   Multi-particle cumulants and corresponding Fourier harmonics are measured for
azimuthal angle distributions of charged particles in $pp$ collisions at
$\sqrt{s}$ = 5.02 and 13 TeV and in $p$+Pb collisions at $\sqrt{s_{NN}}$ = 5.02
TeV, and compared to the results obtained for low-multiplicity Pb+Pb collisions
at $\sqrt{s_{NN}}$ = 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.

18
The categories of this paper are: econ
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
16
The categories of this paper are: stat
30
The categories of this paper are: q-alg
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph