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astro-ph.CO2025
On frequentist confidence intervals in a non-Gaussian regime
Shubham Barua, Shantanu Desai, Mauricio Lopez-Hernandez +1
We study frequentist confidence intervals based on graphical profile likelihoods (Wilks' theorem, likelihood integration), and the Feldman-Cousins (FC) prescription, a generalisati…
astro-ph.CO2025
On the Analysis Dependence of DESI Dynamical Dark Energy
Eoin Ó Colgáin, Saeed Pourojaghi, M. M. Sheikh-Jabbari
We continue scientific scrutiny of the DESI dynamical dark energy (DE) claim by explicitly demonstrating that the result depends on the analysis pipeline. Concretely, we define a l…