Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Minimal Quark-Lepton Symmetry Model and Possible Limits on Z'-Mass from
  TRISTAN and Lep200   A minimal extension of the Standard Model containing the four-color
quark-lepton symmetry is discussed. Some features of an additional $Z'$-boson
originated from this symmetry are investigated and the limits on $m_{Z'}$ from
the current TRISTAN data and the possible limits on $m_{Z'}$ from the future
LEP200 collider are obtained.

16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
2
The categories of this paper are: math
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
26
The categories of this paper are: bayes-an
11
The categories of this paper are: hep-lat