Effective Lagrangians for physical degrees of freedom in the Randall–Sundrum model

  title={Effective Lagrangians for physical degrees of freedom in the Randall–Sundrum model},
  author={Edward E. Boos and Yu. A. Kubyshin and Mikhail N. Smolyakov and Igor P. Volobuev},
  journal={Classical and Quantum Gravity},
We derive the second variation Lagrangian of the Randall–Sundrum model with two branes, study its gauge invariance and diagonalize it in the unitary gauge. We also show that the effective four-dimensional theory looks different on different branes and calculate the observable mass spectra and the couplings of the physical degrees of freedom of five-dimensional gravity to matter. 

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