Heavy Quarkonium in a Holographic Basis

TL;DR

This paper investigates heavy quarkonium using a holographic basis light-front approach, combining one-gluon exchange and holographic confinement to compute spectra and decay properties, aligning well with experimental data.

Contribution

It introduces a novel holographic basis light-front framework for heavy quarkonium, integrating non-perturbative dynamics with holographic wavefunctions for the first time.

Findings

Accurate mass spectra for charmonium and bottomonium

Computed decay constants and form factors consistent with experiments

Demonstrated effectiveness of holographic basis in non-perturbative QCD

Abstract

We study the heavy quarkonium within the basis light-front quantization approach. We implement the one-gluon exchange interaction and a confining potential inspired by light-front holography. We adopt the holographic light-front wavefunction (LFWF) as our basis function and solve the non-perturbative dynamics by diagonalizing the Hamiltonian matrix. We obtain the mass spectrum for charmonium and bottomonium. With the obtained LFWFs, we also compute the decay constants and the charge form factors for selected eigenstates. The results are compared with the experimental measurements and with other established methods.