Invisible Higgs boson, continuous mass fields and unHiggs mechanism

Details Invisible Higgs boson, continuous mass fields and unHiggs mechanism Invisible Higgs boson, continuous mass fields and unHiggs mechanism

2008-10-13

arxiv.org/abs/0810.2155v2

Phys.Rev.D79:055021,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages

Scientific paper

10.1103/PhysRevD.79.055021

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. We show that a spectral function with broad support, which corresponds to approximate fixed point behavior over an extended range of energy, can lead to an effectively invisible Higgs particle, whose decays at LEP or LHC could be obscured by background.

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