Nuclear Physics Seminar - Michael Döring (George Washington University) - Three-body Dynamics for Lattice QCD and Experiment

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Michael Döring (George Washington University) 11/25/20 Nuclear physics seminar speaker
November 25, 2020
4:15PM - 5:15PM
Location
Zoom webinar

Date Range
Add to Calendar 2020-11-25 16:15:00 2020-11-25 17:15:00 Nuclear Physics Seminar - Michael Döring (George Washington University) - Three-body Dynamics for Lattice QCD and Experiment Three-body dynamics plays a relevant role for the decay of excited mesons and baryons, including exotics and hybrids searched for at GlueX, COMPASS and other experiments. The calculation of these systems from lattice QCD is equally relevant. Three-body effects influence Dalitz plots and finite-volume energy levels, respectively, and they have to be taken into account. Using the S-matrix principle of unitarity, a formalism is presented that can be used to analyze experimental data and lattice data. It is illustrated in applications to the a1(1260) meson and for mesonic systems at maximal isospin from lattice QCD. A substantial part of the presentation is dedicated to an introduction of the physics principles that can be followed by graduate students familiar with the basics of quantum mechanical scattering theory.    Zoom link: https://osu.zoom.us/j/95571031602?pwd=VmVjSmYvVStBR0RpRUtpNjhMdCtMdz09 Passcode (if required): 654496 Zoom webinar Department of Physics physics@osu.edu America/New_York public
Description

Three-body dynamics plays a relevant role for the decay of excited mesons and baryons, including exotics and hybrids searched for at GlueX, COMPASS and other experiments. The calculation of these systems from lattice QCD is equally relevant. Three-body effects influence Dalitz plots and finite-volume energy levels, respectively, and they have to be taken into account. Using the S-matrix principle of unitarity, a formalism is presented that can be used to analyze experimental data and lattice data. It is illustrated in applications to the a1(1260) meson and for mesonic systems at maximal isospin from lattice QCD. A substantial part of the presentation is dedicated to an introduction of the physics principles that can be followed by graduate students familiar with the basics of quantum mechanical scattering theory. 

 

Zoom link: https://osu.zoom.us/j/95571031602?pwd=VmVjSmYvVStBR0RpRUtpNjhMdCtMdz09

Passcode (if required): 654496