16 citations · 18 across the 2 of their papers we have counts for
3 papers
Constraints on Disconnected Contributions in Scattering
N. Ripunjay Acharya, Feng-Kun Guo, Ulf-G. Meißner +1
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 disconnecte…
Connected and Disconnected Contractions in Pion-Pion Scattering
Neramballi Ripunjay Acharya, Feng-Kun Guo, Ulf-G. Meißner +1
We show that the interplay of chiral effective field theory and lattice QCD can be used in the evaluation of so-called disconnected diagrams, which appear in the study of the isosc…
-dependence of the lightest meson resonances in QCD
Neramballi Ripunjay Acharya, Feng-Kun Guo, Maxim Mai +1
We derive the pion mass and the elastic pion-pion scattering amplitude in the QCD theta-vacuum up to next-to-leading order in chiral perturbation theory. Using the modified inverse…