Constraints on disconnected contributions in ππ scattering

Abstract The accuracy of the lattice QCD computation of hadron-hadron scattering at low isospin depends critically on the ability to compute correlation functions with fermionic disconnected Wick contractions. This happens, for instance, in isospin I = 0 ππ scattering, which receives contributions f...

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Bibliographic Details
Main Authors: N. Ripunjay Acharya, Feng-Kun Guo, Ulf-G. Meißner, Chien-Yeah Seng
Format: Article
Language:English
Published: SpringerOpen 2019-04-01
Series:Journal of High Energy Physics
Subjects:
Online Access:http://link.springer.com/article/10.1007/JHEP04(2019)165