Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Role of Positron Polarization for the initial 250 GeV stage of the
  ILC   The International Linear Collider is now proposed with a staged machine
design, with the first stage at $\sqrt{s}=250$ GeV and an integrated luminosity
goal of 2 ab${}^{-1}$. One of the questions for the machine design is the
importance of positron polarization. In this report, we review the impact of
positron polarization on the physics goals of the 250 GeV stage of the ILC and
demonstrate that positron polarization has distinct advantages.

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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
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The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
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The categories of this paper are: eess
20
The categories of this paper are: acc-phys
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
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The categories of this paper are: q-fin