Light mesons with one dynamical gluon on the light front

Abstract

We obtain the light meson mass spectroscopy from the light-front quantum chromodynamics (QCD) Hamiltonian, determined for their constituent quark-antiquark and quark-antiquark-gluon Fock components, together with a three-dimensional confinement. The eigenvectors of the light-front effective Hamiltonian provide a good quality description of the pion electromagnetic form factor, decay constant, and the valence quark distribution functions following QCD scale evolution. We also show that the pion's gluon densities can be probed through the pion-nucleus induced $J/\psi$ production data. Our pion parton distribution functions provide excellent agreement with $J/\psi$ production data from widely different experimental conditions.

8 pages, 4 figures; to appear in Physics Letters B

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Cited by in corpus (8)

• Gluon matter distribution in the proton and pion from extended holographic light-front QCD
• The phenomenology of the exotic hybrid nonet with ${\pi }_1(1600)$ and ${\eta }_1(1855)$
• Transverse structure of the pion beyond leading twist with basis light-front quantization
• Nucleon spin decomposition with one dynamical gluon
• Basis light-front quantization approach to $\Lambda$ and ${\Lambda }_c$ and their isospin triplet baryons
• Pion spectroscopy and dynamics using the holographic light-front Schrödinger equation and the 't Hooft equation
• Gluon and valence quark distributions for the pion and kaon in nuclear matter
• Fixed-target charmonium production and pion parton distributions