Radion in Multibrane World

Abstract

The radion dynamics related to the presence of moving branes with both positive or negative tensions is studied in the linearized approximation. The radion effective Lagrangian is computed for a compact system with three branes and in particular we examine the decompactification limit when one brane is sent to infinity. In the non-compact case we calculate the coupling of the gravitational modes (graviton, dilaton and radion) to matter on the branes. The character of gravity on the two branes for all possible combinations of brane tensions is also discussed. It turns out that one can have a normalizable dilaton mode even in the non-compact case. Finally, we speculate on the role of moving branes as a possible source of radion emission.

24 pages, 4 figures, comments added, version published in Nucl. Phys. B

References in corpus (3)

• No Van Dam-Veltman-Zakharov Discontinuity in Ads Space
• Bulk Fermions in Multi-Brane Worlds
• Dilaton tadpoles and mass in warped models

Cited by in corpus (26)

• Effective Field Theory for Massive Gravitons and Gravity in Theory Space
• Effective Lagrangians and Universality Classes of Nonlinear Bigravity
• Multi-Localization in Multi-Brane Worlds
• Brane world corrections to Newton's law
• Flavor Universal Resonances and Warped Gravity
• Realistic Neutrino Masses from Multi-brane Extensions of the Randall-Sundrum Model?
• On the Stabilization of the Size of Extra Dimensions
• Multiple Hierarchies from a Warped Extra Dimension
• Massive Gravitons as Feebly Interacting Dark Matter Candidates
• A Natural Model of Spontaneous CP Violation
• Multi-brane cosmology
• Effective Lagrangian from Higher Curvature Terms: Absence of vDVZ Discontinuity in AdS Space
• Low-energy effective theory for a Randall-Sundrum scenario with a moving bulk brane
• High Quality Axion via a Doubly Composite Dynamics
• Wave function of the radion in the brane background with a massless scalar field and a self-tuning problem
• Radion dynamics in the Multibrane Randall-Sundrum Model
• Effective Lagrangian and stability analysis in warped space
• Resolving Puzzles of Massive Gravity with and without violation of Lorentz symmetry
• A four-dimensional description of five-dimensional N-brane models
• Comments on conformal stability of brane-world models
• Linearized Lorentz-Violating Gravity and Discriminant Locus in the Moduli Space of Mass Terms
• Multi-Scale Physics from Multi-Braneworlds
• Stability of multibrane models
• Gravitational Interactions in a General Multibrane Model
• Radion dynamics in multibrane Randall-Sundrum model
• Anisotropic Evolution Driven by Kinetic Term