Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The 750 GeV threshold to a new particle world   We show how an excess in the diphoton channel can be the effect of neither a
resonance nor an end-point in a cascade decay, but rather of a threshold for
virtual production of a pair of extra quarks, each with half of peak invariant
mass, onsetting in both the $gg$-initiated production and the
$\gamma\gamma$-induced decay of an off-shell $Z$ boson. For our analysis we
consider as paradigmatic example the 750 GeV excess previously seen at the end
of 2015 with the Run 2 data of the LHC but not confirmed with 2016 data.

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The categories of this paper are: supr-con
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The categories of this paper are: atom-ph
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The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
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The categories of this paper are: nucl-th
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The categories of this paper are: econ
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
26
The categories of this paper are: bayes-an