Topic: Bayesian selection methods are explored to address the $\sigma_8$ tension in the standard $\Lambda$CDM model by examining interacting dark sector couplings.
Topic: Modified cosmological expansion and self-interaction gravity are investigated to reconcile JWST observations of earlier reionization with CMB optical depth tensions.
Topic: Metastable dark energy models are re-examined in light of recent DESI DR2 BAO and DR1 full-shape measurements, considering various decay scenarios.
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