Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Accessing weak neutral-current coupling $g_{AA}^{eq}$ using positron and
  electron beams at Jefferson Lab   Low-energy neutral-current couplings arising in the Standard Model of
electroweak interactions can be constrained in lepton scattering off hydrogen
or a nuclear fixed target. Recent polarized electron scattering experiments at
Jefferson Lab (JLab) have improved the precision in the parity-violating types
of effective couplings. On the other hand, the only known way to access the
parity-conserving counterparts is to compare scattering cross sections between
a lepton and an anti-lepton beam. We review the current knowledge of both types
of couplings and how to constrain them. We also present exploratory
calculations for a possible measurement of $g_{AA}^{eq}$ using the planned
SoLID spectrometer combined with a possible positron beam at JLab.

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The categories of this paper are: eess
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The categories of this paper are: acc-phys
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin