Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Search for heavy resonances decaying to a $Z$ boson and a photon in $pp$
  collisions at $\sqrt{s}=13$ TeV with the ATLAS detector   This Letter presents a search for new resonances with mass larger than 250
GeV, decaying to a $Z$ boson and a photon. The dataset consists of an
integrated luminosity of 3.2 fb$^{-1}$ of $pp$ collisions collected at
$\sqrt{s} = 13$ TeV with the ATLAS detector at the Large Hadron Collider. The
$Z$ bosons are identified through their decays either to charged, light, lepton
pairs ($e^+e^-$, $\mu^+\mu^-$) or to hadrons. The data are found to be
consistent with the expected background in the whole mass range investigated
and upper limits are set on the production cross section times decay branching
ratio to $Z\gamma$ of a narrow scalar boson with mass between 250 GeV and 2.75
TeV.

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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: cs
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The categories of this paper are: nucl-ex
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The categories of this paper are: patt-sol
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: q-alg
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The categories of this paper are: dg-ga
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The categories of this paper are: cond-mat
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The categories of this paper are: nucl-th
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The categories of this paper are: supr-con
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The categories of this paper are: math-ph
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The categories of this paper are: hep-th
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The categories of this paper are: physics
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The categories of this paper are: chem-ph