Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Higher-order transverse momentum fluctuations in heavy-ion collisions   In relativistic heavy-ion collisions, the event-by-event mean transverse
momentum fluctuations are sensitive to overlap area and energy density
fluctuations in initial state. We present a framework to calculate
$p_{\mathrm{T}}$ fluctuations up to $4^{\mathrm{th}}$-order using standard and
subevent methods, which is validated using the HIJING model. We observe a
power-law dependence for cumulants of all orders as a function of charged
particle multiplicity $N_{\mathrm{ch}}$, consistent with a simple independent
source picture. The fluctuation in $pp$ collisions is observed to be larger
than for $p+$Pb, Pb+Pb and Xe+Xe collisions at the same $N_{\mathrm{ch}}$ due
to bias in number of contributing sources. The short-range correlations are
greatly suppressed in subevent method in comparison to calculations based on
the standard method. This study provides a baseline for transverse momentum
fluctuations without the presence of final state effects.

8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
3
The categories of this paper are: physics
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn