Gravitational form factors of charmonia

Xu, Siqi; Cao, Xianghui; Hu, Tianyang; Li, Yang; Zhao, Xingbo; Vary, James P.

doi:10.1103/PhysRevD.109.114024

Title: Gravitational form factors of charmonia

Journal Article · 14 June 2024 · Physical Review. D.

DOI: https://doi.org/10.1103/PhysRevD.109.114024 · OSTI ID:2373251

Xu, Siqi; Cao, Xianghui;

;

We investigate the gravitational form factors of charmonium. Our method is based on a Hamiltonian formalism on the light front known as basis light-front quantization. The charmonium mass spectrum and light-front wave functions were obtained from diagonalizing an effective Hamiltonian that incorporates confinement from holographic QCD and one-gluon exchange interaction from light-front QCD. We proposed a quantum many-body approach to construct the hadronic matrix elements of the energy momentum tensor $T^{+ +}$ and $T^{+ -}$ , which are used to extract the gravitational form factors $A (Q^{2})$ and $D (Q^{2})$ . The obtained form factors satisfy the known constraints, e.g., the von Laue condition. From these quantities, we also extract the energy, pressure and light-front energy distributions of the system. We find that hadrons are multilayer systems. Published by the American Physical Society 2024

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Sponsoring Organization:: USDOE

Grant/Contract Number:: SC0023692

OSTI ID:: 2373251

Journal Information:: Physical Review. D., Journal Name: Physical Review. D. Journal Issue: 11 Vol. 109; ISSN PRVDAQ; ISSN 2470-0010

Publisher:: American Physical SocietyCopyright Statement

Country of Publication:: United States

Language:: English

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