254 citations · 1k across the 17 of their papers we have counts for
17 papers
Large-Momentum Effective Theory
Xiangdong Ji, Yu-Sheng Liu, Yizhuang Liu +2
Since the parton model was introduced by Feynman more than fifty years ago, we have learned much about the partonic structure of the proton through a large body of high-energy expe…
Transverse-Momentum-Dependent Parton Distribution Functions from Large-Momentum Effective Theory
Xiangdong Ji, Yizhuang Liu, Yu-Sheng Liu
We show that transverse-momentum-dependent parton distribution functions (TMDPDFs), important non-perturbative quantities for describing the properties of hadrons in high-energy sc…
TMD Soft Function from Large-Momentum Effective Theory
Xiangdong Ji, Yizhuang Liu, Yu-Sheng Liu
We study Euclidean formulations of the transverse-momentum-dependent (TMD) soft function, which is a cross section for soft gluon radiations involving color charges moving in two c…
Matching Quasi Generalized Parton Distributions in the RI/MOM scheme
Yu-Sheng Liu, Wei Wang, Ji Xu +4
Within the framework of large momentum effective theory (LaMET), genenaralized parton distributions (GPDs) can be extracted from lattice calculations of quasi-GPDs through a pertur…
Matching the Quasi Meson Distribution Amplitude in RI/MOM scheme
Yu-Sheng Liu, Wei Wang, Ji Xu +3
The -dependence of light-cone distribution amplitude (LCDA) can be directly calculated from a quasi distribution amplitude (DA) in lattice QCD within the framework of large-mome…
Nucleon Transversity Distribution at the Physical Pion Mass from Lattice QCD
Yu-Sheng Liu, Jiunn-Wei Chen, Luchang Jin +5
We report a state-of-the-art lattice calculation of the isovector quark transversity distribution of the proton at the physical pion mass. Within the framework of large-momentum ef…
Proton Isovector Helicity Distribution on the Lattice at Physical Pion Mass
Huey-Wen Lin, Jiunn-Wei Chen, Xiangdong Ji +6
We present a state-of-the-art calculation of the isovector quark helicity Bjorken- distribution in the proton using lattice-QCD ensembles at the physical pion mass. We compute q…
Unpolarized isovector quark distribution function from Lattice QCD: A systematic analysis of renormalization and matching
Yu-Sheng Liu, Jiunn-Wei Chen, Yi-Kai Huo +10
We present a detailed Lattice QCD study of the unpolarized isovector quark Parton Distribution Function (PDF) using large-momentum effective theory framework. We choose a quasi-PDF…
Eta Decay and Muonic Puzzles
Yu-Sheng Liu, Ian C. Cloët, Gerald A. Miller
New physics motivated by muonic puzzles (proton radius and muon discrepancies) is studied. Using a light scalar boson , assuming Yukawa interactions, accounts for these mu…
Lattice Calculation of Parton Distribution Function from LaMET at Physical Pion Mass with Large Nucleon Momentum
Jiunn-Wei Chen, Luchang Jin, Huey-Wen Lin +4
We present a lattice-QCD calculation of the unpolarized isovector parton distribution function (PDF) using ensembles at the physical pion mass with large proton boost momenta $P_z…
Possible Beyond the Standard Model Physics Motivated by Muonic Puzzles
Yu-Sheng Liu
Recent measurements of the proton radius using the Lamb shift in muonic hydrogen are troublingly discrepant with values extracted from hydrogen spectroscopy and electron-proton sca…
Validity of the Weizsäcker-Williams Approximation and the Analysis of Beam Dump Experiments: Production of an axion, a dark photon, or a new axial-vector boson
Yu-Sheng Liu, Gerald A. Miller
Beam dump experiments have been used to search for new particles, , with null results interpreted in terms of limits on masses and coupling constants . However these li…
The Validity of the Weizsacker-Williams Approximation and the Analysis of Beam Dump Experiments: Production of a New Scalar Boson
Yu-Sheng Liu, David McKeen, Gerald A. Miller
Beam dump experiments have been used to search for new particles with null results interpreted in terms of limits on masses and coupling constants . However these limits h…
Electrophobic Scalar Boson and Muonic Puzzles
Yu-Sheng Liu, David McKeen, Gerald A. Miller
A new scalar boson which couples to the muon and proton can simultaneously solve the proton radius puzzle and the muon anomalous magnetic moment discrepancy. Using a variety of mea…
Polarized Lepton-Nucleon Elastic Scattering and a Search for a Light Scalar Boson
Yu-Sheng Liu, Gerald A. Miller
Lepton-nucleon elastic scattering, using the one-photon and one-scalar-boson exchange mechanisms considering all possible polarizations, is used to study searches for a new scalar…
Holographic Superconductors
Jiunn-Wei Chen, Yu-Sheng Liu, Debaprasad Maity
A holographic model of superconductors based on the action proposed by Benini, Herzog, and Yarom [arXiv:1006.0731] is studied. This model has a charged spin two field in an…
On the Quark Mass Dependence of Two Nucleon Observables
Jiunn-Wei Chen, Tze-Kei Lee, C. -P. Liu +1
We study the implications of lattice QCD determinations of the S-wave nucleon-nucleon scattering lengths at unphysical light quark masses. It is found that with the help of nuclear…