Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Axion and PVLAS data in a Little Higgs model   Little Higgs models may provide a solution to the gauge hierarchy problem in
the mass of the Higgs boson. In this framework the Higgs boson is arisen as the
pseudo-Nambu-Goldstone (PNG) boson. We show that the lepton triplet introduced
in a little Higgs model explains a small mass parameter in the double see-saw
mechanism for neutrino masses, and it can also gives an explanation for the
axion like particle recently reported by PVLAS collaboration.

18
The categories of this paper are: econ
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
37
The categories of this paper are: supr-con
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
16
The categories of this paper are: stat
14
The categories of this paper are: math-ph
26
The categories of this paper are: bayes-an