Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Factorization of the forward-backward charge asymmetry and measurements
  of the weak mixing angle and proton structure at hadron colliders   The forward-backward charge asymmetry (AFB) at hadron colliders is sensitive
to both the electroweak (EW) symmetry breaking represented by the effective
weak mixing angle, and the proton structure information in the initial state
modeled by the parton distribution functions (PDFs). Due to their strong
correlation, the precisions of the determination on the weak mixing angle and
PDFs using the measured AFB spectrum are limited. In this paper, we define a
set of structure parameters which factorize the proton information in the AFB
observation. These parameters reflect unique information of the relative
difference between quarks and antiquarks, and can be simultaneously measured
along with the weak mixing angle, by fitting to the AFB distributions observed
from one single experiment. It is demonstrated that at the LHC, the precision
of the weak mixing angle determination can be significantly improved, compared
to a conventional measurement of simply using the current PDF predictions. At
the same time, the fitted structure parameters can be used to further reduce
the current PDF uncertainties.

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The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
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The categories of this paper are: stat
2
The categories of this paper are: math
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
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The categories of this paper are: supr-con
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The categories of this paper are: comp-gas
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The categories of this paper are: patt-sol
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The categories of this paper are: q-fin
3
The categories of this paper are: physics