ar X iv : h ep - p h / 01 03 18 7 v 2 2 8 M ar 2 00 1 KAIST – TH 2001 / 05 DESY 01

نویسنده

  • Jungil Lee
چکیده

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 (Λφ) 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 → gg, unlike the SM Higgs boson case. We also present constraints on the mass mφ and the new scale Λφ 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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تاریخ انتشار 2001