Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Possible Studies of Parton Distributions at JHF: polarized pd Drell-Yan
  process   We discuss possible studies of parton distributions at the proposed 50-GeV PS
facility. First, comments are given in general on the importance of large-x
physics for finding new physics. Second, polarized deuteron reactions are
discussed in connection with new structure functions which are specific for a
spin-1 hadron. Third, if the polarized proton-deuteron Drell-Yan process is
studied at the facility, it could provide information on the light-antiquark
flavor asymmetry in the polarized distributions.

17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci