Long-term and new challenges in lattice QCD

Speaker: Benoit Blossier, LPT Orsay, Université Paris-Sud

When/Where: 16:30 PM, November 30th, 2016 (Sala F-210)

Abstract: Regularising QCD on a lattice is by now a well established tool to study
the strong interaction in the low-energy regime where perturbation theory
is not reliable anymore. Theoretical and algorithmic developments combined
with facilities of large scale high performance computers induced
significant progresses to explore the parameter space, even reaching the
physical point: now, simulations are performed at the correct pion mass.
Those steps forward offer also the opportunity to solve difficult
questions, either on old problems or on hot topics of the moment. After a
brief presentation of the general state of the art, we will illustrate our
statement by discussing cases of the strong coupling constant, g-2
anomaly of the muon and Delta I = 1/2 rule in K –> pi pi.