Wave function of the radion in a brane world

  title={Wave function of the radion in a brane world},
  author={Christos Charmousis and Ruth Gregory and Valery A. Rubakov},
  journal={Physical Review D},
We calculate the linearized metric perturbation corresponding to a massless four-dimensional scalar field, the radion, in a five-dimensional two-brane model of Randall and Sundrum. In this way we obtain the relative strengths of the radion couplings to matter residing on each of the branes. The results are in agreement with the analysis of Garriga and Tanaka of gravitational and Brans-Dicke forces between matter on the branes. We also introduce a model with an infinite fifth dimension and… 

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