Shouvik Roy Choudhury - Dynamical Dark Energy and Neutrino Masses circa 2025
Автор: Research Talks (from Home)
Загружено: 2025-12-05
Просмотров: 18
Based on arXiv: 2409.13022 (published in ApJ Letters), arXiv: 2504.15340 (published in ApJ Letters), and arXiv: 2509.26144 (accepted in ApJ Letters). We update constraints on cosmological parameters in a 12-parameter model, which extends the standard 6-parameter ΛCDM to include dynamical dark energy and massive neutrinos, along with other new parameters. We use the latest Planck PR4 (2020) likelihoods, DESI DR1 & DR2 BAO, and the latest uncalibrated type Ia Supernovae (SNe) datasets. In this talk, I will discuss the implications for dynamical dark energy in such an extended model, and at the same time, provide robust bounds on neutrino masses which will be useful for the astro- and particle physics communities. I will also discuss the current status of the weak lensing tension and the Hubble tension in this extended cosmology.
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