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arXiv · 1407.7798

Light mass galileon and late time acceleration of the Universe

R. Myrzakulov·M. Shahalam
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Abstract

We study Galileon scalar field model by considering the lowest order Galileon term in the lagrangian, $(\partial_{\mu} \phi)^2 \Box\phi$ by invoking a field potential. We use Statefinder hierarchy to distinguish the light mass galileon models with different potentials amongst themselves and from the $\Lambda$CDM behaviour. The $Om$ diagnostic is applied to cosmological dynamics and observational constraints on the model parameters are studied using SN+Hubble+BAO data.

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R. Myrzakulov, M. Shahalam. 2014-07-26. Light mass galileon and late time acceleration of the Universe. https://doi.org/10.1007/s10714-015-1915-3

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