Published on *Groupe de Physique des Particules* (http://www.lps.umontreal.ca)

Victor Massart

Université de Montréal

Abstract:

The cosmological constant and the discrepancy between its observed value and its theoretical estimate may be the worst prediction in the history of physics. In this talk, I will present a scalar-tensor scenario that can dynamically damp the cosmological constant and provide a viable solution to this fine-tuning problem. I will show that the effect of this model on the cosmological evolution is indistinguishable from the one predicted by general relativity and satisfies the fifth force constraint.

Date:

Thursday, 8 April, 2021 - 11:00

Seminar Location:

Zoom:https://umontreal.zoom.us/j/98209542004?pwd=RkhjMlNaWlVxdlVsdmIrNUc3aGtkUT09 Meeting ID: 982 0954 2004 Passcode: 215263

Refreshments Time and Location:

auto service de café et biscuits!