Speaker
Mr
SRIJIT PAUL
(The Cyprus Institute)
Description
The study of strong scattering in Lattice QCD is enabled by the use of
the Luescher method, which defines a mapping between the two body
spectrum in the finite volume and the infinite volume scattering
amplitude.This talk focuses on the study of $\pi N$ scattering in $P$-wave and $I=\frac{3}{2}$, where the $\Delta$ resonance resides. We use $N_f=2+1$ flavors of tree-level improved Wilson-clover quarks corresponding to a pion mass of $\sim 250$ MeV with lattice size $3.7$ fm, where $\Delta$ is unstable. We aim to discuss the mapping of energy levels to scattering phase shifts.
Primary authors
Mr
Giorgio Silvi
(Forschungszentrum Jülich - University of Wuppertal)
Mr
SRIJIT PAUL
(The Cyprus Institute)
Co-authors
Andrew Pochinsky
(MIT)
Prof.
Constantia Alexandrou
(The Cyprus Institute, University of Cyprus)
Prof.
John Negele Negele
(MIT)
Luka Leskovec
Dr
Marcus Petschlies
(University Bonn)
Prof.
Sergey Syritsyn
(Stony Brook University (SUNY))
Stefan Meinel
(University of Arizona)