Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unification and mass spectrum in the minimal $B-L$ model   Gauging $B-L$ symmetry provides a simple realization of the seesaw mechanism
in a naturally anomaly free extension to the MSSM gauge group, $SU(3)_c\times
SU(2)_L\times U(1)_Y \times U(1)_{B-L}$. However, as we discuss in here, it
turns out that the simplest $B-L$ extension of the MSSM may change some of the
conceptions about the path for gauge unification as well as to affect the
predicted spectrum of the supersymmetric particles at low energy. For instance,
the coupling $g_{B-L}$ ended up to be smallest of all of them and the lightest
gaugino is the one related to $B-L$. RGE also help to understand the
spontaneous breaking of the $U(1)_{B-L}$ and the vacuum expectation value of
the sneutrino at low energies, which occurs in this type of models.

14
The categories of this paper are: math-ph
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
36
The categories of this paper are: cmp-lg
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc