Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strangeness Vector and Axial-Vector Form Factors of the Nucleon   A revised global fit of electroweak $ep$ and $\nu p$ elastic scattering data
has been performed, with the goal of determining the strange quark contribution
to the vector and axial-vector form factors of the nucleon in the
momentum-transfer range $0<Q^2<1$ GeV$^2$. The two vector (electric and
magnetic) form factors $G_E^s(Q^2)$ and $G_M^s(Q^2)$ are strongly constrained
by $ep$ elastic scattering data, while the major source of information on the
axial-vector form factor $G_A^s(Q^2)$ is $\nu p$ scattering data. Combining the
two kinds of data into a single global fit makes possible additional precision
in the determination of these form factors, and provides a unique way to
determine the strange quark contribution to the nucleon spin, $\Delta S$,
independently of leptonic deep-inelastic scattering. The fit makes use of data
from the BNL-E734, SAMPLE, HAPPEx, G0, and PVA4 experiments; we will also
compare the result of the fit with recent data from MiniBooNE, and anticipate
how this fit can be improved when new data from MicroBooNE become available.

9
The categories of this paper are: nlin
1
The categories of this paper are: cs
23
The categories of this paper are: solv-int
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
2
The categories of this paper are: math
5
The categories of this paper are: gr-qc
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga