Light Cone 2021: Physics of Hadrons on the Light Front

Basis light-front quantization approach to Λ(Σ0,Σ+,Σ−) and Λc(Σc+,Σc++,Σc0)

1 Dec 2021, 15:30

15m

Emerald Hall B (Jeju Booyoung Hotel)

Contributed talk Parallel Session

Speaker

Tiancai Peng (Lanzhou University)

Description

We obtain the masses, the electromagnetic properties, and the parton distribution functions (PDFs) of the baryons (with a strange quark $\mathrm{\Lambda }$ and a charm quark ${\mathrm{\Lambda }}_c$, and their isospin triplet baryons) from a light-front effective Hamiltonian in the leading Fock sector. The effective Hamiltonian consists of the confining potential adopted from light-front holography in the transverse direction, a longitudinal confinement, and a one-gluon exchange interaction with fixed coupling. The electromagnetic radii and the magnetic moments are found to be consistent with the available experimental data. We also show a comparison with the other theoretical calculations on the electromagnetic properties of these baryons. We present the gluon and the sea quark PDFs which we generate dynamically from the QCD evolution of the valence quark distributions.

Presentation materials

Lambda and lambdac from BLFQ.pdf