Limits on evolution of the fine-structure constant in runaway dilaton models from Sunyaev–Zeldovich observations
In this paper, new bounds on possible variations of the fine structure constant, α, for a class of runaway dilaton models are performed. By considering a possible evolution with redshift, z, such as Δαα=−γln(1+z), where in γ are the physical properties of the model, we constrain this parameter by u...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2017-04-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317300734 |