Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-08-10
Pramana69:789-794,2007
Physics
High Energy Physics
High Energy Physics - Phenomenology
To appear in the proceeding of LCWS06, Bangalore, India
Scientific paper
10.1007/s12043-007-0183-5
In the extra dimensional scenarios with gauge fields in the bulk, the Kaluza-Klein (KK) gauge bosons can induce Nambu-Jona-Lasinio (NJL) type attractive four-fermion interactions, which can break electroweak symmetry dynamically with accompanying composite Higgs fields. We consider a possibility that electroweak symmetry breaking (EWSB) is triggered by both a fundamental Higgs and a composite Higgs arising in a dynamical symmetry breaking mechanism induced by a new strong dynamics. The resulting Higgs sector is a partially composite two-Higgs doublet model with specific boundary conditions on the coupling and mass parameters originating at a compositeness scale $\Lambda$. The phenomenology of this model is discussed including the collider phenomenology at LHC and ILC.
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