Matches in SemOpenAlex for { <https://semopenalex.org/work/W2022803750> ?p ?o ?g. }
- W2022803750 abstract "We investigate a simple braneworld model in which the universe contains only cold dark matter and a cosmological constant, but the effective dark energy is phantomlike because of extra-dimensional gravity effects. Modified gravity screens the cosmological constant $ensuremath{Lambda}$, allowing for a larger $ensuremath{Lambda}$. In practice, observations do not favor any significant screening. We use supernova data, the cosmic microwave background shift parameter, and the baryon oscillation peak in the galaxy distribution to constrain the model. We find the mean value of ${ensuremath{Omega}}_{mathrm{m}}$ with 68% confidence limits, and an upper limit on ${ensuremath{Omega}}_{ensuremath{Lambda}}$ at the 68% confidence level. The best-fit model is very close to a standard LCDM model, but the LCDM model provides a better fit since it has one less parameter." @default.
- W2022803750 created "2016-06-24" @default.
- W2022803750 creator A5001331910 @default.
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- W2022803750 date "2006-10-13" @default.
- W2022803750 modified "2023-10-14" @default.
- W2022803750 title "Observational constraints on phantomlike braneworld cosmologies" @default.
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- W2022803750 doi "https://doi.org/10.1103/physrevd.74.083510" @default.
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