Three-body unitarity versus finite-volume $\pi^+\pi^+\pi^+$ spectrum from lattice QCD
High Energy Physics - Lattice
2020-03-25 v1 Nuclear Theory
Abstract
Strong three-body interactions above threshold govern the dynamics of many exotics and conventional excited mesons and baryons. Three-body finite-volume energies calculated from lattice QCD promise an ab-initio understanding of these systems. We calculate the three- spectrum unraveling the three-body dynamics that is tightly intertwined with the -matrix principle of three-body unitarity and compare it with recent lattice QCD results. For this purpose, we develop a formalism for three-body systems in moving frames and apply it numerically.
Cite
@article{arxiv.1909.05749,
title = {Three-body unitarity versus finite-volume $\pi^+\pi^+\pi^+$ spectrum from lattice QCD},
author = {M. Mai and M. Döring and C. Culver and A. Alexandru},
journal= {arXiv preprint arXiv:1909.05749},
year = {2020}
}
Comments
8 pages, 4 figures