HEP@VUB meetings

Thursday 14 Feb 2019, 12:00 → 13:00 Europe/Brussels

Jean Sacton seminar room (1G003) (Universe)

Jean Sacton seminar room (1G003)

Universe

Description

Speaker: Kevin Nguyen

Registration

Participants

Participants

Alberto Mariotti
Ali Seraj
Andrey Popov
Ankit Aggarwal
Aqeel Ahmed
Ben Craps
Charles Rabideau
Emil Bols
Krijn de Vries
Kévin Nguyen
Marine De Clerck
Mostafa Mahdavikhorrami
Pascal Vanlaer
Paul Coppin
Saereh Najjari
Sam Junius
Simon De Kockere
Steven Lowette
Turmoli Neogi
Vincent Luyten
Wout Merbis

- 12:00 → 13:00
  
  A Graceful Exit for the Cosmological Constant Damping Scenario 1h
  
  I will present a simple and generic class of scalar-tensor theories that successfully realize dynamical damping of the effective cosmological constant, therefore providing a possible viable dynamical mechanism for solving the fine-tuning cosmological constant problem. In this approach, the original fine-tuning issue is traded for a hierarchy of couplings, and I will further discuss naturalness of this pattern of couplings in the context of fermion condensation and softly broken field shift symmetry.
  
  Speaker: Kevin Nguyen