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Quarkonium as relativistic bound state on the light front

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arxiv 1704.06968 v2 pith:HUQLNY2J submitted 2017-04-23 hep-ph nucl-th

Yang Li , Pieter Maris , James P. Vary This is my paper · ORCID
classification hep-phnucl-th
keywords light-frontfunctionsboundcomputedistributionhamiltonianheavymodel
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We study charmonium and bottomonium as relativistic bound states in a light-front quantized Hamiltonian formalism. The effective Hamiltonian is based on light-front holography. We use a recently proposed longitudinal confinement to complete the soft-wall holographic potential for the heavy flavors. The spin structure is generated from the one-gluon exchange interaction with a running coupling. The adoption of asymptotic freedom improves the spectroscopy compared with previous light-front results. Within this model, we compute the mass spectroscopy, decay constants and the r.m.s. radii. We also present a detailed study of the obtained light-front wave functions and use the wave functions to compute the light-cone distributions, specifically the distribution amplitudes and parton distribution functions. Overall, our model provides a reasonable description of the heavy quarkonia.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Quantum entanglement within quarkonium

    hep-ph 2026-07 conditional novelty 6.0 of 10

    Quark-antiquark entanglement entropy in quarkonium is derived from light-front wave functions, reduces to the Shannon entropy of TMDs, and shows strong polarization dependence for spin-1 mesons.

  2. Quark and gluon entanglement in the proton based on a light-front Hamiltonian

    hep-ph 2024-12 reject novelty 6.0 of 10

    Using BLFQ proton wave functions, the authors compute parton spin and momentum entanglement and report that a dynamical gluon enhances quark entanglement.

  3. Strange mesons with one dynamical gluon: A light-front approach

    hep-ph 2025-01 conditional novelty 5.0 of 10

    A basis light-front QCD model with one dynamical gluon reproduces strange meson spectra and yields kaon form factors, PDFs, and Drell-Yan cross sections testable at COMPASS++/AMBER.

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