Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass generation mechanism for spin 1/2 fermions in Dirac--Yang--Mills
  model equations with a symplectic gauge symmetry   In the Standard Model of electroweak interactions the fundamental fermions
acquire masses by the Yukawa interaction with the (spin 0) Higgs field. In our
model spin 1/2 fermions acquire masses by an interaction with (spin 1) gauge
field with symplectic symmetry.

30
The categories of this paper are: q-alg
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
11
The categories of this paper are: hep-lat
32
The categories of this paper are: atom-ph
17
The categories of this paper are: q-fin
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
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The categories of this paper are: solv-int
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The categories of this paper are: dg-ga
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
1
The categories of this paper are: cs