158 citations · 1.3k across the 40 of their papers we have counts for
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The hadronic tensor from four-point functions on the lattice
Christian Zimmermann, Terrence Draper, Jian Liang +3
The hadronic tensor is the central non-perturbative object in the calculation of the cross section of lepton-hadron interactions like neutrino-nucleon scattering. It is usually par…
Gluon Unpolarized, Polarized, and Transversity GPDs from Lattice QCD: Lorentz-Covariant Parametrization (Part I)
Jakob Schoenleber, Raza Sabbir Sufian, Taku Izubuchi +1
We identify the matrix elements necessary to determine the leading-twist gluon generalized parton distributions (GPDs) $H_g,~E_g,~\wt{H}_g,~\wt{E}_g,~H^T_g,~E^T_g, \wt{H}^T_g ,~\wt…
Polarized and unpolarized gluon PDFs: generative machine learning applications for lattice QCD matrix elements at short distance and large momentum
Talal Ahmed Chowdhury, Taku Izubuchi, Methun Kamruzzaman +6
Lattice quantum chromodynamics (QCD) calculations share a defining challenge by requiring a small finite range of spatial separation between quark/gluon bilinears for controlla…
Elastic and resonance structures of the nucleon from hadronic tensor in lattice QCD: implications for neutrino-nucleon scattering and hadron physics
Jian Liang, Raza Sabbir Sufian, Bigeng Wang +5
We compute the Euclidean hadronic tensor from charge density operators and extract elastic and resonance structures by employing exponential fits to the four-point correlator, as w…
Non-singlet quark helicity PDFs of the nucleon from pseudo-distributions
Robert G. Edwards, Colin Egerer, Joseph Karpie +9
The non-singlet helicity quark parton distribution functions (PDFs) of the nucleon are determined from lattice QCD, by jointly leveraging pseudo-distributions and the distillation…
Gluon helicity distribution in the nucleon from lattice QCD and machine learning
Tanjib Khan, Tianbo Liu, Raza Sabbir Sufian
We present the first lattice QCD determination of the light cone gluon helicity correlation parton distribution function (PDF) with numerical evidence toward disfavoring negative g…
Towards the determination of the gluon helicity distribution in the nucleon from lattice quantum chromodynamics
Colin Egerer, Bálint Joó, Joseph Karpie +10
We present the first exploratory lattice quantum chromodynamics (QCD) calculation of the polarized gluon Ioffe-time pseudo-distribution in the nucleon. The Ioffe-time pseudo-distri…
Lattice QCD and Particle Physics
Andreas S. Kronfeld, Tanmoy Bhattacharya, Thomas Blum +79
Contribution from the USQCD Collaboration to the Proceedings of the US Community Study on the Future of Particle Physics (Snowmass 2021).
Unpolarized gluon distribution in the nucleon from lattice quantum chromodynamics
Tanjib Khan, Raza Sabbir Sufian, Joseph Karpie +9
In this study, we present a determination of the unpolarized gluon Ioffe-time distribution in the nucleon from a first principles lattice quantum chromodynamics calculation. We car…
Bayesian-Wilson coefficients in lattice QCD computations of valence PDFs and GPDs
Nikhil Karthik, Raza Sabbir Sufian
We propose an analysis method for the leading-twist operator product expansion based lattice QCD determinations of the valence parton distribution function (PDF). In the first step…
Constraints on charm-anticharm asymmetry in the nucleon from lattice QCD
Raza Sabbir Sufian, Tianbo Liu, Andrei Alexandru +6
We present the first lattice QCD calculation of the charm quark contribution to the nucleon electromagnetic form factors in the momentum transfer range $0\leq Q^2…
Pion valence quark distribution from current-current correlation in lattice QCD
Raza Sabbir Sufian, Colin Egerer, Joseph Karpie +6
We extract the pion valence quark distribution from lattice QCD (LQCD) calculated matrix elements of spacelike correlations of one vector and one axial vector curr…
Pion Valence Structure from Ioffe Time Pseudo-Distributions
Bálint Joó, Joseph Karpie, Kostas Orginos +4
We present a calculation of the pion valence quark distribution extracted using the formalism of reduced Ioffe time pseudo-distributions or more commonly known as pseudo-PDFs. Our…
Lattice QCD and Neutrino-Nucleus Scattering
Andreas S. Kronfeld, David G. Richards, William Detmold +6
This document is one of a series of whitepapers from the USQCD collaboration. Here, we discuss opportunities for lattice QCD in neutrino-oscillation physics, which inevitably entai…
Pion Valence Quark Distribution from Matrix Element Calculated in Lattice QCD
Raza Sabbir Sufian, Joseph Karpie, Colin Egerer +3
We present the first exploratory lattice QCD calculation of the pion valence quark distribution extracted from spatially separated current-current correlations in coordinate space.…
Sea Quarks Contribution to the Nucleon Magnetic Moment and Charge Radius at the Physical Point
Raza Sabbir Sufian, Yi-Bo Yang, Jian Liang +2
We report a comprehensive analysis of the light and strange disconnected-sea quarks contribution to the nucleon magnetic moment, charge radius, and the electric and magnetic form f…
Lattice Calculation of Nucleon Isovector Axial Charge with Improved Currents
Jian Liang, Yi-Bo Yang, Keh-Fei Liu +3
We employ dimension-4 operators to improve the local vector and axial-vector currents and calculate the nucleon isovector axial coupling with overlap valence on -flavo…
Unphysical Poles of Domain Wall Fermions at finite
Raza Sabbir Sufian, Michael J. Glatzmaier, Yi-Bo Yang
We investigate the origin and behavior of oscillations observed in the hadron correlators constructed from the domain wall fermion (DWF) for different parameters involved in lattic…
Glue Spin in The Longitudinally Polarized Nucleon
Raza Sabbir Sufian, Michael J. Glatzmaier, Yi-Bo Yang +2
We present a lattice QCD calculation of the glue spin in the nucleon for the first time. It was recently shown that the first moment of the glue helicity distribution could b…