Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological Dark Matter in the Little Higgs Models   We show that certain little Higgs models with symmetry breaking SU(N) ->
SO(N) for N >= 4 admit topologically stable solitons that may contribute to
cosmological dark matter. We have constructed a spherically symmetric soliton
and estimated its mass in the case of SU(5) -> SO(5). Its lower bound is found
to be around 10.3 TeV. Whether this particle is a fermion or a boson depends on
the value of an integer-valued parameter of the underlying theory, analogous to
the number of colors of QCD. In either case, the particle is neutral. If it is
a fermion, it is a Majorana particle, which could take part in a seesaw
mechanism for neutrino masses.

27
The categories of this paper are: comp-gas
8
The categories of this paper are: hep-ex
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
18
The categories of this paper are: econ
31
The categories of this paper are: ao-sci
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
22
The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th