A probe of the Radion-Higgs mixing in the Randall-Sundrum model at e^+ e^- colliders

Details A probe of the Radion-Higgs mixing in the Randall-Sundrum model at e^+ e^- colliders A probe of the Radion-Higgs mixing in the Randall-Sundrum model at e^+ e^- colliders

2003-01-02

arxiv.org/abs/hep-ph/0301002v1

Phys.Rev. D67 (2003) 075017

Physics

High Energy Physics

High Energy Physics - Phenomenology

14pages, RevTeX, 5 figures

Scientific paper

10.1103/PhysRevD.67.075017

In the Randall-Sundrum model, the radion-Higgs mixing is weakly suppressed by the effective electroweak scale. A novel feature of the existence of gravity-scalar mixing would be a sizable three-point vertex among the KK graviton, Higgs and radion. We study this vertex in the process e^+ e^- -> h phi, which is allowed only with a non-zero radion-Higgs mixing. It is shown that the angular distribution is a unique characteristic of the exchange of massive spin-2 gravitons, and the total cross section at the future e^+ e^- collider is big enough to cover a large portion of the parameter space where the LEP/LEP II data cannot constrain.

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