activity
20162024
most citedParton Distribution Functions from a Light Front Hamiltonian and QCD Evolution for Light Mesons

108 citations · 570 across the 25 of their papers we have counts for

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15 papers · 1 filter

nucl-th2024

Erratum: Exact solutions to the fermion propagator Schwinger-Dyson equation in Minkowski space with on-shell renormalization for quenched QED \newline [Phys. Rev. D 96, 036021 (2017)]

Shaoyang Jia, Michael R. Pennington

With the introduction of a spectral representation, the Schwinger--Dyson equation (SDE) for the fermion propagator is formulated in Minkowski space in QED. After imposing the on-sh…

nucl-th2024

Nakanishi integral representation of pseudoscalar fermion-antifermion bound states in the Bethe--Salpeter equation

Shaoyang Jia

We propose a method to solve for the pseudoscalar bound state amplitude of a fermion and an antifermion from its Bethe--Salpeter equation (BSE) in the Minkowski space applying spec…

nucl-th2024

Quark propagator with complex-valued momentum from Schwinger-Dyson equation in the Euclidean space

Shaoyang Jia, Ian Cloët

In the Euclidean-space formulation of integral equations for the structure of quantum chromodynamics (QCD) bound states, the quark propagators with complex-valued momentum are dens…

nucl-th2023★ 2 cited

Direct solution of Minkowski-space Bethe-Salpeter equation in the massive Wick-Cutkosky model

Shaoyang Jia

In order to solve the Bethe-Salpeter equation (BSE) in the Minkowski space, we first introduce the Nakanishi integral representations of the Bethe-Salpeter amplitude (BSA) and the…

nucl-th2020★ 47 cited

Light mesons within the basis light-front quantization framework

Wenyang Qian, Shaoyang Jia, Yang Li +1

We study the light-unflavored mesons as relativistic bound states in the nonperturbative Hamiltonian formalism of the basis light-front quantization (BLFQ) approach. The dynamics f…

nucl-th2020★ 4 cited

On the light-front wave functions of quarkonia

Pieter Maris, Shaoyang Jia, Meijian Li +3

The light-front wave functions of hadrons allow us to calculate a wide range of physical observables; however, the wave functions themselves cannot be measured. We discuss recent r…

nucl-th2019

Minkowski-space solutions of the Schwinger-Dyson equation for the fermion propagator with the rainbow-ladder truncation

Shaoyang Jia, Pieter Maris, Dyana C. Duarte +3

We solve the Minkowski-space Schwinger-Dyson equation (SDE) for the fermion propagator in quantum electrodynamics (QED) with massive photons. Specifically, we work in the quenched…

nucl-th2019

Valence structures of light and strange mesons from the basis light-front quantization framework

Shaoyang Jia, James P. Vary

We apply the basis light-front quantization framework to solve for the structures of mesons with light and strange valence quarks. Our approach treats mesons as relativistic bound…

nucl-th2019★ 99 cited

Pion and kaon parton distribution functions from basis light front quantization and QCD evolution

Jiangshan Lan, Chandan Mondal, Shaoyang Jia +2

We investigate the parton distribution functions (PDFs) of the pion and the kaon by combining quantum chromodynamics (QCD) evolution with the basis light front quantization. The in…

nucl-th2019★ 108 cited

Parton Distribution Functions from a Light Front Hamiltonian and QCD Evolution for Light Mesons

Jiangshan Lan, Chandan Mondal, Shaoyang Jia +2

We obtain the pion and the kaon parton distribution functions from the eigenstates of a light front effective Hamiltonian in the constituent quark-antiquark representation suitable…

nucl-th2018★ 3 cited

Parton distribution functions from scalar light-front parton gas model

Shaoyang Jia, James P. Vary

We propose an application of a microcanonical ensemble with light-front kinematics to model the phase-space distribution of relativistic constituents of a bound state. These consti…

nucl-th2018★ 81 cited

Basis light front quantization for the charged light mesons with color singlet Nambu--Jona-Lasinio interactions

Shaoyang Jia, James P. Vary

We apply the basis light front quantization (BLFQ) approach to describe the valence structures of the charged light meson ground states. Specifically, the light front wavefunctions…

nucl-th2017★ 20 cited

Exact Solutions to the Fermion Propagator Schwinger-Dyson Equation in Minkowski space with on-shell Renormalization for Quenched QED

Shaoyang Jia, M. R. Pennington

With the introduction of a spectral representation, the Schwinger-Dyson equation (SDE) for the fermion propagator is formulated in Minkowski space in QED. After imposing the on-she…

nucl-th2016★ 13 cited

How gauge covariance of the fermion and boson propagators in QED constrain the effective fermion-boson vertex

Shaoyang Jia, M. R. Pennington

We derive the gauge covariance requirement imposed on the QED fermion-photon three-point function within the framework of a spectral representation for fermion propagators. When sa…

nucl-th2016★ 12 cited

Gauge covariance of the fermion Schwinger-Dyson equation in QED

Shaoyang Jia, M. R. Pennington

Any practical application of the Schwinger-Dyson equations to the study of -point Green's functions of a field theory requires truncations, the best known being finite order per…