2022
03/01
OPEN
Date
2022/03/01（Tue） 17:00～18:00
Venue
Online (Zoom)
Speaker
Dr. Mattia Bruno (CERN)
Language
English
URL
Contact
Jun-Sik Yoo / junsik-AT-post.kek.jp
Overview
The Monte Carlo methods used in Lattice QCD simulations rely on the rotation of the path integral to Euclidean metric. Unfortunately, the limited knowledge of correlation functions on finite subsets of points prevents a direct analytic continuation to Minkowski signature. In their seminal publication of 1990, Maiani and Testa showed that physical amplitudes away from threshold cannot be directly extracted, ie without an inverse problem, from Euclidean correlators, due to offshell contaminations. In this presentation, I revisit and extend their original work, and explore the connection with recent developments on the inverse problem in Lattice QCD.