Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: LEP $e^{+}\,e^{-}\,\rightarrow\,\mu^{+}\, \mu^{-}\,\gamma\,\gamma$
  events and their consequences at future $e^+e^-$ colliders   The $e^{+}\,e^{-}\,\rightarrow\,l^{+}\, \l^{-}\,\gamma\,\gamma$ anomalous
events, detected by $L3$ de\-tec\-tor at $e^+ e^-$ $CERN-LEP$ collider have
been analysed. It has been shown that the interpretation of such events as a
manifestation of scalar (pseudoscalar) resonance with the mass of 60 GeV
contradicts other experimental data. In case of a possible existence that kind
of resonance, the perspectives to discover one in some processes at future
$e^+e^-$ colliders have been discussed.

4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
9
The categories of this paper are: nlin
30
The categories of this paper are: q-alg
7
The categories of this paper are: hep-th
18
The categories of this paper are: econ
2
The categories of this paper are: math
15
The categories of this paper are: nucl-ex
35
The categories of this paper are: mtrl-th
27
The categories of this paper are: comp-gas
19
The categories of this paper are: eess