Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Abundant phi-Meson Production in pbar-p Annihilation at Rest and
  Strangeness in the Nucleon   A large apparent violation of the OZI rule has recently been found in many
channels in pbar-p annihilation LEAR. An interpretation of these data in terms
of the "shake-out" and "rearrangement" of an intrinsic sbar-s component of the
nucleon wave function is proposed. This gives a channel-dependent,
non-universal modification of the naive OZI prediction. Within this approach,
we interpret the strong excess of $\phi$ production in S-wave pbar-p
annihilations in terms of the polarization of the nucleon's sbar-s component
indicated by deep inelastic lepton-nucleon scattering experiments. This
interpretation could be tested by measurements of the $f_2'(1525)/f_2(1270)$
production ratio in P-wave annihilations and by experiments with polarized
beams and polarized targets. We also propose a test of the intrinsic
strangeness hypothesis in $\phi$ production in high-momentum transfer
processes, via a difference in constituent counting rules from gluon-mediated
production.

31
The categories of this paper are: ao-sci
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
2
The categories of this paper are: math