Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing polarized valence quark distributions in $W^{-}$-boson
  production   While EMC-SMC-E142 data sheds new light on the behavior of polarized parton
distributions at small and intermediate $x$, it may be also interesting to
study valence quark polarizations at large $x$, where spectator quark counting
rules and Carlitz-Kaur type models predict different behavior for down quark
polarizations. The article examines the possibility of testing the ratio
$\Delta d_V(x)/d_V(x)$ at $x\to 1$ in the inclusive production of
$W^{-}$-bosons.

9
The categories of this paper are: nlin
1
The categories of this paper are: cs
18
The categories of this paper are: econ
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
2
The categories of this paper are: math
12
The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph