Orateur
Kamil Serafin
(Institute of Modern Physics, Chinese Academy of Sciences)
Description
We study numerically spectrum of positronium using effective
(and renormalized) Hamiltonian obtained from QED by means of
the renormalization group procedure for effective particles
(RGPEP). The basis light-front quantization (BLFQ) provides
the framework for numerical computations. Positronium is chosen
as the testing ground for our method and a stepping stone for
future studies in QCD, which is the intended application area
of the method. We obtain reasonable agreement between our and
the well-known perturbative results with controllable
uncertainties. The dependence on the renormalization scale
parameter is also studied.
Auteur principal
Kamil Serafin
(Institute of Modern Physics, Chinese Academy of Sciences)
