Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Beam-beam studies for the High-Energy LHC   LHC upgrades are being considered both towards higher luminosity (HL-LHC) and
towards higher energy (HE-LHC). In this paper we report initial studies of the
beam-beam effects in the HE-LHC [1]. The HE-LHC aims at beam energies of 16.5
TeV, where the transverse emittance decreases due to synchrotron radiation with
a 2-hour damping time. As a result of this emittance, shrinkage the beam-beam
parameter increases with time, during a physics store. The beam-beam limit in
the HE-LHC is explored using computer simulations.

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The categories of this paper are: stat
24
The categories of this paper are: dg-ga
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ