Novel Enhancement of Loop-Induced $H^\pm W^\mp Z^0$ Vertex

Details Novel Enhancement of Loop-Induced $H^\pm W^\mp Z^0$ Vertex Novel Enhancement of Loop-Induced $H^\pm W^\mp Z^0$ Vertex

1997-12-19

arxiv.org/abs/hep-ph/9712450v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Sprocl-tex, 5 pages including 3 figures. (Talk given at PPPP'97 Workshop: APCTP, 31 Oct. - 2 Nov., 1997, Seoul, Korea)

Scientific paper

We discuss the non-decoupling effects on the loop-induced $H^\pm W^\mp Z^0$ vertex in the general two Higgs-doublet model. The decay process $H^\pm \to W^\pm Z^0$ is analyzed at one-loop level and possible enhancement of the decay width is explored. We find that a novel enhancement can be realized by the Higgs non-decoupling effects with large mass difference between charged and CP-odd Higgs bosons. The branching ratio of the process can be a few % $\sim$ 10%. Therefore the decay mode may be detectable at LHC or future $e^+e^-$ linear colliders (LC's).

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