Mass hierarchy and localization of gravity in extra time
Mar, 200010 pages
Published in:
- Phys.Lett.B 488 (2000) 117-122
e-Print:
- hep-th/0003269 [hep-th]
Report number:
- HIP-2000-16-TH
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Abstract:
We consider Randall-Sundrum model with localized gravity, replacing the extra compact space-like dimension by a time-like one. In this way the solution to the hierarchy problem can be reconciled with a correct cosmological expansion of the visible universe, just as a trivial result of the sign flip of cosmological constants in the bulk and on the 3-branes relative to the case of extra space-like dimension. Some phenomenological aspects of the proposed scenario related to the tachyonic nature of Kaluza-Klein states of graviton are also discussed.- gravitation
- dimension: >4
- space-time: signature
- Randall-Sundrum model
- Kaluza-Klein model
- mass spectrum: hierarchy
- bibliography
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