The scalar field associated with fluctuations in the positions of the two branes, the ``radion'', plays an important role determining the cosmology and collider phenomenology of the Randall-Sundrum solution to the hierarchy problem. It is now well known th

Acknowledgments

G.D.K.thanks the theoretical physics group at LBL where part of this work was completed. This work was supported in part by the U.S.Department of Energy under grant number DE-FG02-95ER40896,and in part by the Wisconsin Alumni Research Foundation. Appendix:Goldstone boson calculation including mixing

Given the action

S= d4x√

√

z2)

2

(1−6ξ)r ∂µω+∂µω−+1

v

ω±=

The scalar field associated with fluctuations in the positions of the two branes, the ``radion'', plays an important role determining the cosmology and collider phenomenology of the Randall-Sundrum solution to the hierarchy problem. It is now well known th

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17