Dynamical Adjustment of the Cosmological Constant
Mar 28, 19886 pages
Published in:
- Phys.Lett.B 211 (1988) 49-54
- Published: Aug 25, 1988
Report number:
- Print-88-0235 (BARTOL),
- BA-88-18
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Abstract: (Elsevier)
We examine a recent proposal by Peccei, Sola and Wetterich for the dynamical cancellation of the cosmological constant and explicitly demonstrate that their mechanism is plagued by a fine-tuning problem, order-by-order in perturbation theory. Our analysis, however, suggests a modification of their scheme which seems to have a good chance of solving the cosmological constant problem. It involves the existence of more than one dilaton. We also discuss the relevance to “fifth” forces.- COSMOLOGICAL CONSTANT
- POSTULATED PARTICLE: DILATON
- POSTULATED PARTICLE: COSMON
- FIELD THEORY: SPACE-TIME
- TENSOR: ENERGY-MOMENTUM
- FIELD THEORY: SCALAR
- APPROXIMATION: EFFECTIVE POTENTIAL
- GRAVITATION: CORRECTION
- MODEL: NEW INTERACTION
- NEW INTERACTION: MODEL
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