Nonperturbative QFT in the complex momentum space

Session

Thursday Afternoon Session

15 Jun 2023, 14:00

Physics and Chemistry Theatre (PCT) (Maynooth University)

12. Matter distribution in the proton -- the gluon scalar form factor

Prof. Gastao Krein

15/06/2023, 14:00

Talk

I will discuss the gluon scalar form factor of the proton and its relation to the QCD trace anomaly and the origin of the proton mass. After reviewing calculations of this form factor using different models, I will discuss the prospects of its experimental extraction using femtoscopic measurements of the Jpsi-proton interaction. I will finish with a brief discussion about the corresponding...

36. Pion momentum distributions in Minkowski space

Prof. wayne de paula (Instituto Tecnologico de Aeronautica)

15/06/2023, 14:45

Talk

We present a dynamical model for the pion based on the solution of the Bethe-Salpeter equation in Minkowski space. The masses of quark and gluon as well as the interaction-vertex scale have been chosen in a range suggested by lattice-QCD calculations, and calibrated to reproduce both pion mass and decay constant. Within this model, we obtain the valence probability, the LF-momentum...