Massive states as the relevant deformations of gravitating branes
- INFN, Sezione di Trieste and Scuola Internazionale Superiore di Studi Avanzati (ISAS/SISSA) via Beirut 2-4, 34014 Trieste (Italy)
Five-dimensional theories manifesting spontaneous brane generation are discussed in a gravitational context. Without gravity, the IR dynamics of the brane fluctuation below the brane tension scale is described by an effective theory for the Nambu-Goldstone modes. When gravity is properly taken into account, the long-distance dynamics changes. The spontaneous breaking of local translational invariance triggers the formation of massive representations via the Higgs mechanism and induces the appearance of new mass scales in the IR. These scales can in principle depend on other fundamental parameters besides the brane tension and the Planck mass. In noncompact extra dimensions the massive states are found to be scalar bound states. We obtain explicit expressions for their propagator and show that their masses depend on the brane width. We present an exactly solvable model which captures the main features of the gravitational system.
- OSTI ID:
- 21254493
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 78, Issue 8; Other Information: DOI: 10.1103/PhysRevD.78.085029; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Exact solutions for a Maxwell-Kalb-Ramond action with dilaton: Localization of massless and massive modes in a sine-Gordon brane-world
Top and bottom: A brane of their own