Axion and PVLAS data in a Little Higgs model
arXiv:hep-ph/0608228 · doi:10.1103/PhysRevD.74.115004
Abstract
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.
arXiv comment7 pages, no figure; the version to appear in Phys. Rev. D
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