Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Neutral Currents and GIM Mechanism in SU(3)_L X U(1)_N Models for
  Electroweak Interactions   We study the Glashow-Iliopoulos-Maiani mechanism for
flavor-changing-neutral-currents suppression in both, the gauge and Higgs
sectors, for models with $SU(3)_L\otimes U(1)_N$ gauge symmetry. The models
differ one from the other only with respect to the representation content. The
main features of these models are that in order to cancel the triangle
anomalies the number of families must be divisible by three (the number of
colors) and that the lepton number is violated by some lepton-gauge bosons and
lepton-scalar interactions.

16
The categories of this paper are: stat
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
7
The categories of this paper are: hep-th