Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: High Energy Hadron Colliders - Report of the Snowmass 2013 Frontier
  Capabilities Hadron Collider Study Group   High energy hadron colliders have been the tools for discovery at the highest
mass scales of the energy frontier from the SppS, to the Tevatron and now the
LHC. This report reviews future hadron collider projects from the high
luminosity LHC upgrade to a 100 TeV hadron collider in a large tunnel, the
underlying technology challenges and R&D directions and presents a series of
recommendations for the future development of hadron collider research and
technology.

31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
4
The categories of this paper are: cond-mat
12
The categories of this paper are: nucl-th
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph
20
The categories of this paper are: acc-phys