Gravitational form factors of the pion in light-front holographic QCD
Abstract
Understanding the internal structure of the pion-particularly the energy-momentum distributions of quarks and gluons and the internal mechanical properties encoded in its gravitational form factors-is a fundamental challenge in quantum chromodynamics (QCD). In this work, we study the gravitational form factors using light-front QCD (LFQCD), combined with the holographic QCD. Our main innovation is the introduction of an effective light-front wave function, with its five-dimensional component obtained from holographic QCD, which is then employed, within the light-front QCD framework, to calculate the pion's gravitational form factors A(Q2) and D(Q2) as well as its radius. Our computed pion gravitational form factors show agreement with lattice QCD results, providing nontrivial support for the viability of our phenomenological model.
Related
- Gravitational form factors of heavy quarkonia and their nonrelativistic expansion in a self-consistent light-front quark model
- Determination of the η-η′ Mixing Angle from Transition Form Factors within the Self-consistent Light-front Quark Model
- Gravitational form factors of the proton in the improved holographic QCD model
- Radial Excitation Spectra of Light Pseudoscalar and Vector Mesons in Light-Front Holographic QCD
- Interpolating conformal algebra in (3+1) dimensions between the instant form and the light-front form of relativistic dynamics
BibTeX
@misc{deng2026gravitational,
title = {{Gravitational form factors of the pion in light-front holographic QCD}},
author = {Jiali Deng and Xiaolong Wang and Yang Zhou and Defu Hou},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2607.07305},
eprint = {2607.07305},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.07305},
}
RIS
TY - UNPB
TI - Gravitational form factors of the pion in light-front holographic QCD
AU - Jiali Deng
AU - Xiaolong Wang
AU - Yang Zhou
AU - Defu Hou
PY - 2026
DA - 2026/10/29
PB - arXiv
DO - 10.48550/arxiv.2607.07305
UR - https://arxiv.org/abs/2607.07305
AB - Understanding the internal structure of the pion-particularly the energy-momentum distributions of quarks and gluons and the internal mechanical properties encoded in its gravitational form factors-is a fundamental challenge in quantum chromodynamics (QCD). In this work, we study the gravitational form factors using light-front QCD (LFQCD), combined with the holographic QCD. Our main innovation is the introduction of an effective light-front wave function, with its five-dimensional component obtained from holographic QCD, which is then employed, within the light-front QCD framework, to calculate the pion's gravitational form factors A(Q^2) and D(Q^2) as well as its radius. Our computed pion gravitational form factors show agreement with lattice QCD results, providing nontrivial support for the viability of our phenomenological model.
ER -