The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Hierarchies without symmetries from extra dimensions
Open accessAbstract
It is commonly thought that small couplings in a low-energy theory, such as those needed for the fermion mass hierarchy or proton stability, must originate from symmetries in a high-energy theory. We show that this expectation is violated in theories where the standard model fields are confined to a thick wall in extra dimensions, with the fermions ``stuck'' at different points in the wall. Couplings between them are then suppressed due to the exponentially small overlaps of their wave functions. This provides a framework for understanding both the fermion mass hierarchy and proton stability without imposing symmetries, but rather in terms of higher dimensional geography. A model independent prediction of this scenario is non-universal couplings of the standard model fermions to the ``Kaluza-Klein'' excitations of the gauge fields. This allows a measurement of the fermion locations in the extra dimensions at the CERN LHC or NLC if the wall thickness is close to the TeV scale.
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Citations
Cites
The hierarchy problem and new dimensions at a millimeter
Arkani–Hamed, N., Dimopoulos, S., & Dvali, G. (1998) · Physics Letters B · doi:10.1016/s0370-2693(98)00466-3 · Cited by 6,563
Heterotic and Type I string dynamics from eleven dimensions
Hořava, P., & Witten, E. (1996) · Nuclear Physics B · doi:10.1016/0550-3213(95)00621-4 · Cited by 1,984
Metadata
- Authors
- Arkani-Hamed, N., & Schmaltz, M.
- Venue
- Physical Review D
- Publisher
- American Physical Society (APS)
- Published
- 2000-01-04
- Volume
- 61
- Issue
- 3
- ISSN
- 0556-2821 (ISSN-L)
- 1089-4918
- OpenAlex
- W2065971246
- Cited by
- 726
- References
- 2
- FWCI
- 41.87
- Type
- journal article
- Language
- en
- Open access
- green
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- Arkani-Hamed, N., & Schmaltz, M. (2000). Hierarchies without symmetries from extra dimensions. Physical Review D. https://doi.org/10.1103/physrevd.61.033005
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