Speaker
Jacob Sitison
(University of Colorado Boulder)
Description
In this talk, we present two and three pion scattering using finite volume spectra from lattice QCD. We discuss three-pion scattering in both the maximal isospin and isotensor channels, the latter of which exhibits a $\rho$ resonant subsystem. The different three-pion channels rely on knowledge of the same two-pion subchannels with $I_{2\pi}=2,1$. We explore the importance of simultaneous fits to two- and three-body spectra to properly account for correlations in determining the relevant scattering amplitudes. The lattice spectra used include multiple volumes from ensembles with $M_{\pi}\approx400$ MeV generated by the Hadron Spectrum Collaboration.
Author
Jacob Sitison
(University of Colorado Boulder)
Co-authors
Andrew Jackura
(William & Mary)
Max Hansen
Nicholas Chambers
(William & Mary)
Rana Urek
(University of California Berkeley)
Raul Briceno
(UC Berkeley & LBNL)
Robert Edwards