Invisible Higgs boson, continuous mass fields, and unparticle Higgs mechanism

@article{Calmet2009InvisibleHB,
  title={Invisible Higgs boson, continuous mass fields, and unparticle Higgs mechanism},
  author={Xavier Calmet and Nilendra G. Deshpande and X. G. He and Stephen Hsu},
  journal={Physical Review D},
  year={2009},
  volume={79},
  pages={055021}
}
We explore the consequences of an electroweak symmetry breaking sector which exhibits approximately scale invariant dynamics -- i.e., nontrivial fixed point behavior, as in unparticle models. One can think of an unHiggs as a composite Higgs boson with a continuous mass distribution. We find it convenient to represent the unHiggs in terms of a Kallen-Lehmann spectral function, from which it is simple to verify the generation of gauge boson and fermion masses, and unitarization of WW scattering… 

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