Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The ATLAS and CMS Plans for the LHC Luminosity Upgrade   In January 2007 the CERN director general announced the plan for the staged
upgrade of the LHC luminosity. The plan foresees a phase 1 upgrade reaching a
peak luminosity of $3 \times 10^{34}$ cm$^{-2}$s$^{-1}$ followed by phase
reaching up to $ 10^{35}$ cm$^{-2}$s$^{-1}$. We discuss the physics potential
and the experimental challenges of an upgraded LHC running. The detector R&D
needed to operate ATLAS and CMS in a very high radiation environment and the
expected detector performance are also discussed.

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The categories of this paper are: adap-org
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The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics
24
The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math