The QCD axion, precisely

The QCD axion is probably the most robust solution to the strong CP 
problem and a natural dark matter candidate. While its properties, such as the 
mass and the couplings, are mostly determined by non-perturbative QCD effects 
I will present recent computations demonstrating that they can be reliably 
extracted with percent accuracy, which is important for the theory 
interpretation of experimental results. I will also discuss some recent 
lattice QCD results highlighting a departure from the usual instanton 
estimates and potentially changing the prediction for the axion relic 
abundance substantially.

Dates: 

Mardi, 17 janvier, 2017 - 14:00

Salle / Local: 

483 A - Malevitch

Nom/Prénom // Last name/First name: 

Giovanni Villadoro

Affiliation: 

ICTP, Trieste

Equipe organisatrice / Organizing team: 

  • Théorie