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Phenomenology of the radion in Randall-Sundrum scenario at colliders

Saebyok Bae·P. Ko·Hong Seok Lee·Jungil Lee
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Abstract

Phenomenology of a radion ($ϕ$) that stabilizes the modulus in the Randall-Sundrum scenario is considered. The radion couples to the trace of energy momentum tensor of the standard model (SM) with a strength suppressed only by a new scale ($Λ_ϕ$) of an order of the electroweak scale. In particular, the effective coupling of a radion to two gluons are 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 $ϕ$ -> 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 and perturbative unitarity bound.

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Saebyok Bae, P. Ko, Hong Seok Lee, Jungil Lee. 2000-03-16. Phenomenology of the radion in Randall-Sundrum scenario at colliders. https://doi.org/10.1016/s0370-2693(00)00819-4

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