14 citations · 98 across the 16 of their papers we have counts for
16 papers
A Quantitative Framework of Nonperturbative QCD from Topological Vacuum with Application to Parton Structures
Wei-Yang Liu
This dissertation develops a quantitative framework that provides a physical picture for non-perturbative QCD based on the topological structure of the QCD vacuum. By integrating o…
Dissipative Quantum Dynamics in Static Network with Different Topologies
Wei-Yang Liu, Hsuan-Wei Lee
We investigate the dissipative dynamics of quantum population and coherence among different network topologies of a quantum network using a quantum spin model coupled to a thermal…
The color force acting on a quark in the pion and nucleon
Wei-Yang Liu, Edward Shuryak, Ismail Zahed
In the Operator Product Expansion (OPE) of hard scattering amplitudes, the twist-3 operators describe local colored Lorentz forces acting on a quark, thereby providing a measure of…
Tomography of the Rho meson in the QCD Instanton Vacuum: Transverse Momentum Dependent Parton Distribution Functions
Wei-Yang Liu, Ismail Zahed
We analyse the rho meson unpolarized and polarized transverse momentum dependent parton distribution functions (TMDPDFs) in the instanton liquid model (ILM). The corresponding TMDs…
Tomography of Pions and Kaons in the QCD Vacuum: Transverse Momentum Dependent Parton Distribution Functions
Wei-Yang Liu, Ismail Zahed
We evaluate the pion and kaon transverse momentum dependent parton distribution functions (TMDPDFs) in the instanton liquid model (ILM), a model of the QCD vacuum at low resolution…
Collins-Soper Kernel in the QCD Instanton Vacuum
Wei-Yang Liu, Ismail Zahed, Yong Zhao
We outline a general framework for evaluating the non-perturbative soft functions in the QCD instanton vacuum. In particular, from the soft function we derive the Collins-Soper (CS…
Nucleon electric dipole form factor in QCD vacuum
Wei-Yang Liu, Ismail Zahed
In the QCD vacuum, the nucleon form factors receive contributions from the underlying ensemble of topological pseudoparticles, which are sensitive to a finite vacuum angle . We…
Generic framework for non-perturbative QCD in light hadrons
Wei-Yang Liu
In this paper, we review several topological aspects of the QCD vacuum and recent progress on this quantitative framework for the low-lying hadron physics rooted in QCD by introduc…
Pion gravitational form factors in the QCD instanton vacuum II
Wei-Yang Liu, Edward Shuryak, Ismail Zahed
We revisit the hard QCD contributions to the pion gravitational form factors (GFFs), in terms of the twist-2,3 pion distribution amplitudes (DA), including novel semi-hard contribu…
Pion gravitational form factors in the QCD instanton vacuum I
Wei-Yang Liu, Edward Shuryak, Christian Weiss +1
The pion form factors of the QCD energy-momentum tensor (EMT) are studied in the instanton liquid model (ILM) of the QCD vacuum. In this approach the breaking of conformal symmetry…
Glue in hadrons at medium resolution and the QCD instanton vacuum
Wei-Yang Liu, Edward Shuryak, Ismail Zahed
We discuss a general framework for the evaluation of the gluonic form factors in light hadrons at low momentum transfer, in the QCD instanton vacuum. At medium resolution of the or…
Hadronic structure on the light-front VIII. Light scalar and vector mesons
Wei-Yang Liu, Edward Shuryak, Ismail Zahed
We use the QCD instanton vacuum model to discuss the emergence of the light scalar and vector mesons on the light front. We take into account both the instanton and anti-instanton…
Parton Distributions from Boosted Fields in the Coulomb Gauge
Xiang Gao, Wei-Yang Liu, Yong Zhao
We propose a new method to calculate parton distribution functions (PDFs) from lattice correlations of boosted quarks and gluons in the Coulomb gauge. Compared to the widely used g…
Hadronic structure on the light-front VII. Pions and kaons and their partonic distributions
Wei-Yang Liu, Edward Shuryak, Ismail Zahed
This work is a continuation in our series of papers, that addresses quark models of hadronic structure on the light front, motivated by the QCD vacuum structure and lattice results…
Chiral Perturbation for Large Momentum Effective Field Theory
Wei-Yang Liu, Jiunn-Wei Chen
Large momentum effective field theory (LaMET) enables the extraction of parton distribution functions (PDFs) directly on a Euclidean lattice through a factorization theorem that re…
Renormalon Effects in Quasi Parton Distributions
Wei-Yang Liu, Jiunn-Wei Chen
We investigate the renormalon ambiguity from bubble-chain diagrams in the isovector unpolarized quasi-parton distribution function (PDF) of a hadron. We confirm the assertion by Br…