18 citations · 60 across the 12 of their papers we have counts for
8 papers · 1 filter
Towards a first principles light-front Hamiltonian for the nucleon
Siqi Xu, Yiping Liu, Chandan Mondal +4
We solve the nucleon's wave functions from the eigenstates of the light-front quantum chromodynamics Hamiltonian for the first time, using a fully relativistic and nonperturbative…
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 (…
Electron form factors in Basis Light-front Quantization
Lingdi Meng, Shuo Tang, Zhi Hu +4
In this paper, we evaluate the electromagnetic and gravitational form factors as well as the corresponding generalized parton distributions of the electron using the Basis Light-fr…
Hadronic energy-momentum tensor revisited
Yang Li, Qun Wang, James P. Vary
Everything gravitates and they do so through the energy-momentum tensor (EMT). However, there is no consensus on how to define the EMT of a hadron, e.g. the proton, the fundamental…
Energy momentum tensor on and off the light cone: exposition with scalar Yukawa theory
Xianghui Cao, Siqi Xu, Yang Li +4
We compute the gravitational form factors , and of the scalar Yukawa theory using both the light-cone and covariant perturbation theory at the one-loop level.…
Flavor asymmetry from the non-perturbative nucleon sea
Yihan Duan, Siqi Xu, Shan Cheng +3
We demonstrate, in the context of a scalar version of the chiral effective field theory, that the multi-sea quark contribution to the nucleon is significant and highly non-trivial…
Stress out of charmonia
Siqi Xu, Xianghui Cao, Tianyang Hu +3
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 charmoni…