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Radion Phenomenology in the Randall Sundrum Scenario

S. Bae·P. Ko·H. S. Lee·Jungil Lee
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Abstract

Phenomenology of a radion ($ϕ$) in the Randall-Sundrum scenario is discussed. The radion couples to the trace of energy momentum tensor of the standard model with a strength suppressed only by a new scale ($Λ_ϕ$) which is an order of the electroweak scale. In particular, the effective coupling of a radion to two gluons is enhanced due to the trace anomaly of QCD. Therefore, its production cross section at hadron colliders could be enhanced, and the dominant decay mode of a relatively light radion is $ϕ\to g g$, unlike the SM Higgs boson case. We also present constraints on the mass $m_ϕ$ and the new scale $Λ_ϕ$ from the Higgs search limit at LEP, perturbative unitarity bound and the stability of the radion/Higgs potential under radiative corrections.

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S. Bae, P. Ko, H. S. Lee, Jungil Lee. 2001-03-28. Radion Phenomenology in the Randall Sundrum Scenario. https://doi.org/10.1142/9789812799678_0019

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