Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Supersymmetric Model with Dirac Neutrino Masses   New models have recently been proposed in which a second Higgs doublet
couples only to the lepton doublets and right-handed neutrinos, yielding Dirac
neutrino masses. The vacuum value of this second "nu-Higgs" doublet is made
very small by means of a very softly-broken $Z_2$ or U(1) symmetry. The latter
is technically natural and avoids fine-tuning and very light scalars. We
consider a supersymmetric version of this model, in which two additional
doublets are added to the MSSM. If kinematically allowed, the decay of the
heavy MSSM scalar into charged nu-Higgs scalars will yield dilepton events
which can be separated from the W-pair background. In addition, the
nu-Higgsinos can lead to very dramatic tetralepton, pentalepton and hexalepton
events which have negligible background and can be detected at the LHC and the
Tevatron.

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The categories of this paper are: gr-qc
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The categories of this paper are: quant-ph
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
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The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph
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The categories of this paper are: physics
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: nucl-th