305 citations · 577 across the 15 of their papers we have counts for
14 papers · 1 filter
Third moments of nucleon unpolarized, polarized, and transversity parton distribution functions from physical-point lattice QCD
Emilio Taggi, Michael Engelhardt, Jeremy R. Green +6
Using forward matrix elements of local leading-twist operators, we present a determination of the isovector third Mellin moments of nucleon unpolarized, polari…
Nucleon electromagnetic form factors at large momentum from Lattice QCD
S. Syritsyn, M. Engelhardt, S. Krieg +2
Proton and neutron electric and magnetic form factors are the primary characteristics of their spatial structure and have been studied extensively over the past half-century. At la…
Quark orbital angular momentum in the proton from a twist-3 generalized parton distribution
M. Engelhardt, N. Hasan, S. Krieg +6
Quark orbital angular momentum in the proton is evaluated via a Lattice QCD calculation of the second Mellin moment of the twist-3 generalized parton distribution $\widetilde{E}_{2…
Moments of Nucleon Unpolarized, Polarized, and Transversity Parton Distribution Functions from Lattice QCD at the Physical Point
Marcel Rodekamp, Michael Engelhardt, Jeremy R. Green +6
The second Mellin moments of the nucleon's unpolarized, polarized, and transversity parton distribution functions (PDFs) are computed. Two lattice QCD ensembles…
Transverse momentum-dependent parton distributions for longitudinally polarized nucleons from domain wall fermion calculations at the physical pion mass
M. Engelhardt, N. Hasan, T. Izubuchi +7
Previous Lattice QCD calculations of nucleon transverse momentum-dependent parton distributions (TMDs) focused on the case of transversely polarized nucleons, and thus did not enco…
Quark spin-orbit correlations in the proton
M. Engelhardt, J. R. Green, N. Hasan +10
Generalized transverse momentum-dependent parton distributions (GTMDs) provide a comprehensive framework for imaging the internal structure of the proton. In particular, by encodin…
Quark orbital angular momentum in the proton evaluated using a direct derivative method
M. Engelhardt, J. Green, N. Hasan +5
Quark orbital angular momentum (OAM) in the proton can be calculated directly given a Wigner function encoding the simultaneous distribution of quark transverse positions and momen…
Initial nucleon structure results with chiral quarks at the physical point
S. Syritsyn, T. Blum, M. Engelhardt +10
We report initial nucleon structure results computed on lattices with 2+1 dynamical Möbius domain wall fermions at the physical point generated by the RBC and UKQCD collaborations.…
Nucleon electromagnetic form factors from lattice QCD using a nearly physical pion mass
J. R. Green, J. W. Negele, A. V. Pochinsky +3
We present lattice QCD calculations of nucleon electromagnetic form factors using pion masses = 149, 202, and 254 MeV and an action with clover-improved Wilson quarks coupled…
Nucleon Structure from Lattice QCD Using a Nearly Physical Pion Mass
J. R. Green, M. Engelhardt, S. Krieg +3
We report the first Lattice QCD calculation using the almost physical pion mass mpi=149 MeV that agrees with experiment for four fundamental isovector observables characterizing th…
Nucleon Scalar and Tensor Charges from Lattice QCD with Light Wilson Quarks
J. R. Green, J. W. Negele, A. V. Pochinsky +3
We present 2+1 flavor Lattice QCD calculations of the nucleon scalar and tensor charges. Using the BMW clover-improved Wilson action with pion masses between 150 and 350 MeV and th…
Aspects of Precision Calculations of Nucleon Generalized Form Factors with Domain Wall Fermions on an Asqtad Sea
J. D. Bratt, R. G. Edwards, M. Engelhardt +13
In order to advance lattice calculations of moments of unpolarized, helicity, and transversity distributions, electromagnetic form factors, and generalized form factors of the nucl…
Generalized parton distributions from domain wall valence quarks and staggered sea quarks
LHPC Collaboration, D. B. Renner, J. Bratt +10
Moments of the generalized parton distributions of the nucleon, calculated with a mixed action of domain wall valence quarks and asqtad staggered sea quarks, are presented for pion…
Nucleon Generalized Parton Distributions from Full Lattice QCD
Ph. Hägler, W. Schroers, J. Bratt +9
We present a comprehensive study of the lowest moments of nucleon generalized parton distributions in N_f=2+1 lattice QCD using domain wall valence quarks and improved staggered se…