Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Singlet superfield extension of the minimal supersymmetric standard
  model with Peccei-Quinn symmetry and a light pseudoscalar Higgs boson at the
  LHC   Motivated by the mu-problem and the axion solution to the strong CP-problem,
we extend the MSSM with one more chiral singlet field $X_e$. The underlying
PQ-symmetry allows only one more term $X_e H_u H_d$ in the superpotential. The
spectrum of the Higgs system includes a light pseudoscalar $a_X$ (in addition
to the standard CP-even Higgs boson), predominantly decaying to two photons:
$a_X \to \gamma \gamma$. Both Higgs bosons might be in the range accessible to
current LHC experiments.

18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex
16
The categories of this paper are: stat
1
The categories of this paper are: cs
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
34
The categories of this paper are: chem-ph