28–30 oct. 2025
LPNHE
Fuseau horaire Europe/Paris

CMB + BAO + SN: Bayesian Model Comparisons and Cross-Dataset Tensions

28 oct. 2025, 16:40
40m
Seminar room (LPNHE)

Seminar room

LPNHE

4 Place Jussieu, RC Tour 12/22 salle 08, 75005 Paris

Orateur

Dr Lukas Hergt (IJCLab, IN2P3, CNRS)

Description

We present a unified assessment of Bayesian Model Comparisons and Cross-Dataset Tension/Consistency for the (still) standard $\Lambda$CDM model and some minimal extensions (curvature $\Omega_K$, sum of neutrino masses $\sum{m_\nu}$, constant $w$ or dynamic $w_0,w_a$ dark energy) in light of data from the cosmic microwave background (CMB), baryon acoustic oscillations (BAO), and supernovae (SN). Our analysis highlights how specific combinations drive or relieve tensions.

Auteur

Dr Lukas Hergt (IJCLab, IN2P3, CNRS)

Co-auteurs

Prof. Douglas Scott (UBC) Dr Matthieu Tristram (IJCLab, IN2P3, CNRS) Dr Sophie Henrot-Versillé (IJCLab, IN2P3, CNRS)

Documents de présentation