6 papers
Spin-orbit correlation of quarks within quarkonium
Tianyang Hu, Xianghui Cao, Siqi Xu +3
The spin-orbit correlation (SOC) provides a unique probe into the internal spin structure of hadrons. Defined via the parity-odd (P-odd) energy-momentum tensor (EMT), this observab…
Origin of the nucleon gravitational form factor : Exposition in light-front holographic QCD
Xianghui Cao, Bheemsehan Gurjar, Chandan Mondal +2
Recent lattice QCD simulations and phenomenological models indicate that the nucleon's gravitational form factor remains remarkably small at finite momentum transfer .…
Convergence in charmonium structure: light-front wave functions from basis light-front quantization and Dyson-Schwinger equations
Xianghui Cao, Yang Li, Chao Shi +2
We present a systematic comparison of charmonium light-front wave functions obtained through two complementary non-perturbative approaches: Basis Light-Front Quantization (BLFQ) an…
Non-perturbative flavor asymmetry in the nucleon and deuteron: The light-front Hamiltonian effective field theory approach
Xianghui Cao, Shan Cheng, Yihan Duan +3
We investigate non-perturbative multi-pion contributions to nucleon flavor asymmetry within the framework of Light-Front Hamiltonian Effective Field Theory (LFHEFT). Utilizing a Fo…
Gravitational form factor of charmonium from shear stress
Tianyang Hu, Xianghui Cao, Siqi Xu +3
Based on our recent analysis of the hadronic matrix element of the stress-energy tensor in covariant light front dynamics, we extract the charmonium gravitational form factor $D(Q^…
Dissecting a strongly coupled scalar nucleon
Xianghui Cao, Yang Li, James P. Vary
We continue our investigation of the stress within a strongly coupled scalar nucleon, and now dissect the gravitational form factors into contributions from its constituents, the (…