- Abstract:
- We revisit the possibility that the Planck mass is spontaneously generated in scale invariant scalar-tensor theories of gravity, typically leading to a "dilaton." The fifth force, arising from the dilaton, is severely constrained by astrophysical measurements. We explore the possibility that nature is fundamentally Weyl-scale invariant and argue that, as a consequence, the fifth force effects are dramatically suppressed and such models are viable. We discuss possible obstructions to maintaining scale invariance and how these might be resolved.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
- Version:
- Accepted manuscript
- Files:
-
-
(pdf, 130.9KB)
-
- Publisher copy:
- 10.1103/PhysRevD.95.064038
-
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- Publisher:
- American Physical Society Publisher's website
- Journal:
- Physical Review D Journal website
- Volume:
- 95
- Issue:
- 6
- Pages:
- 064038
- Publication date:
- 2017-03-05
- Acceptance date:
- 2017-03-05
- DOI:
- EISSN:
-
2470-0029
- ISSN:
-
2470-0010
- Pubs id:
-
pubs:666309
- URN:
-
uri:8b6a190b-d217-4c9d-acff-ad910b7dce76
- UUID:
-
uuid:8b6a190b-d217-4c9d-acff-ad910b7dce76
- Local pid:
- pubs:666309
- Keywords:
- Copyright holder:
- American Physical Society
- Copyright date:
- 2017
- Notes:
- © 2017 American Physical Society
Journal article
No fifth force in a scale invariant universe
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Leverhulme Trust
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European Research Council
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United States Department of Energy
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