most citedGWTC-4.0: Updating the Gravitational-Wave Transient Catalog with Observations from the First Part of the Fourth LIGO-Virgo-KAGRA Observing Run

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astro-ph.CO2026

EFT of Dark Energy with Cosmic Chronometers: Reconstructing Background EFT Functions

Fumiya Okamatsu, Kazufumi Takahashi

The effective field theory (EFT) of dark energy provides a model-independent framework for studying cosmology within scalar-tensor theories. In this work, we explore how the time e…