XVth Quark Confinement and the Hadron Spectrum

Study of hadron masses with Faddeev-Popov eigenmode projection in the Coulomb gauge

4 Aug 2022, 16:00

20m

EOJ (UiS)

Parallel Talk A: Vacuum structure and confinement Parallels Track A

Speaker

Mr Hiroki Ohata (YITP, Kyoto University)

Description

The QCD vacuum has been energetically studied by lattice QCD simulations
with projection methods, such as Abelian projection and center projection.
We propose a new-type projection in the Coulomb gauge, in which gauge configurations are expanded in terms of Faddeev-Popov eigenmodes and only some eigenmodes are kept. With lattice QCD simulations at the quenched level, we apply this projection to the light hadron masses and find that they are reproduced with just a one percent of low-lying eigenmodes. Also, we discuss the results from the viewpoint of the quark model.

Presentation materials

Ohata_confinement2022.pdf