Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: New U(1) Gauge Extension of the Supersymmetric Standard Model   In extending the minimal standard model of quarks and leptons to include
supersymmetry, the conservation of baryon and lepton numbers is no longer
automatic. I show how the latter may be achieved with a new U(1) gauge symmetry
and new supermultiplets at the TeV scale. Neutrino masses and a solution of the
$\mu$ problem are essential features of this proposed extension.

25
The categories of this paper are: patt-sol
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
36
The categories of this paper are: cmp-lg