Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Evidence for electroweak production of two jets in association with a
  $Z\gamma$ pair in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS
  detector   Evidence for electroweak production of two jets in association with a
$Z\gamma$ pair in $\sqrt{s} = 13$ TeV proton$-$proton collisions at the Large
Hadron Collider is presented. The analysis uses data collected by the ATLAS
detector in $2015$ and $2016$ that corresponds to an integrated luminosity of
$36.1~\mathrm{fb}^{-1}$. Events that contain a $Z$ boson candidate decaying
leptonically into either $e^{+}e^{-}$ or $\mu^{+}\mu^{-}$, a photon, and two
jets are selected. The electroweak component is measured with observed and
expected significances of $4.1$ standard deviations. The fiducial cross-section
for electroweak production is measured to be $\sigma_{Z\gamma jj\mathrm{-EW}} =
7.8 \; \pm 2.0 \; \mathrm{fb}$, in good agreement with the Standard Model
prediction.

14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
1
The categories of this paper are: cs
28
The categories of this paper are: alg-geom
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics