Details on the event

01/09/2018

Astrophysics Talk

The H0 Olympics: a fair ranking of proposed models.

Guillermo Franco Abellan (Laboratoire Univers et Particules de Montpellier)

Tuesday 18/01/2022 @ 14:00, Sala IV piano Battiferro

Despite the remarkable success of the ?CDM model, a growing experimental discrepancy (at the level of 5?) has emerged in the determination of the Hubble constant using different probes. While a vast array of Lambda CDM extensions have been proposed to explain this discrepancy, understanding the (relative) success of these models in resolving the tension has proven difficult. This is a direct consequence of the fact that each model has been subjected to differing, and typically incomplete, compilations of data. In this talk, I discuss a systematic comparison of seventeen different models which have been proposed to resolve the Hubble tension, and explain how to quantify the relative success of each using a series of metrics and a vast array of data combinations.