Speakers
Description
Gravitational form factors (GFFs) are fundamental tools for probing the internal mass distribution and the dynamics of quarks and gluons within the hadron. They are derived from matrix elements of the energy–momentum tensor and encode information about the momentum, pressure, and energy distributions within hadrons. While lattice QCD offers robust results in Euclidean space, continuum methods like Dyson–Schwinger (DSE) and Bethe–Salpeter (BS) equations formulated directly in Minkowski space allow direct access to real-time observables and infrared dynamics—particularly those relevant for gluonic contributions .
This study focuses on computing the pion’s GFFs using Minkowski-space BS amplitudes and DSE solutions with dressed quarks and gluons. Simple analytical models constrained by lattice QCD results on dressed quarks, gluons and quark-gluon vertex will be used to describe the pion GFFs, with special emphasis on the separation of quark and gluon contributions.