Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing Lepton Number Violation via Majorana Neutrinos at Hadron
  Supercolliders   The possibility of discovering heavy Majorana neutrinos and lepton number
violation via the like sign dilepton signal at hadron super- colliders is
investigated. The cross-sections for the production of these neutrinos singly
as well as in pairs are computed both in three and four generation scenarios
within the framework of the gauge group $SU(2)_L \otimes U(1)_Y$ and the
dominant processes are identified. The suppression of the Standard model
background by suitable kinematical cuts is also discussed.

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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
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The categories of this paper are: math-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
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The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: adap-org
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The categories of this paper are: eess
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The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn