Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The phi NN coupling from chiral loops   Starting from effective Lagrangians which combine a gauge formulation of
Vector Meson Dominance with Chiral Lagrangians, the coupling of the phi to the
nucleon, which is zero at tree level due to the OZI rule, is calculated
perturbatively considering loop contributions to the electric and magnetic form
factors. We obtain reasonably smaller values for both form factors than those
for rho NN and consistent with the expected order of magnitude of the OZI rule
violation.

11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
10
The categories of this paper are: q-bio