Speaker
Maxwell Hansen
(University of Edinburgh)
Description
In this talk, I present a lattice-QCD calculation of the maximal-isospin, three-pion scattering amplitude (3π+ to 3π+). The calculation combines finite-volume energies with a relativistic field-theoretic formalism, required to interpret the results. I will describe the full work-flow required to reach the final amplitude, implemented here for the first time, and discuss the complicated singularities appearing in the latter. I will further discuss how the approach promises to be a powerful tool for resonant three-particle systems.
based up material appearing in
Phys.Rev.Lett. 126 (2021) 012001, arXiv: 2009.04931
M. T. Hansen, R. A. Briceño, R. G. Edwards, C. E. Thomas, D. J. Wilson
for the Hadron Spectrum Collaboration
Primary author
Maxwell Hansen
(University of Edinburgh)
