Status and future perspectives for lattice gauge theory calculations to the exascale and beyond

B Joó, C Jung, NH Christ, W Detmold… - The European Physical …, 2019 - Springer
In this and a set of companion white papers, the USQCD Collaboration lays out a program of
science and computing for lattice gauge theory. These white papers describe how …

Neural-network analysis of Parton Distribution Functions from Ioffe-time pseudodistributions

L Del Debbio, T Giani, J Karpie, K Orginos… - Journal of High Energy …, 2021 - Springer
A bstract We extract two nonsinglet nucleon Parton Distribution Functions from lattice QCD
data for reduced Ioffe-time pseudodistributions. We perform such analysis within the NNPDF …

Parton distribution functions from Ioffe time pseudodistributions from lattice calculations: approaching the physical point

B Joó, J Karpie, K Orginos, AV Radyushkin… - Physical Review Letters, 2020 - APS
We present results for the unpolarized parton distribution function of the nucleon computed
in lattice QCD at the physical pion mass. This is the first study of its kind employing the …

The continuum and leading twist limits of parton distribution functions in lattice QCD

J Karpie, K Orginos, A Radyushkin… - Journal of High Energy …, 2021 - Springer
A bstract In this study, we present continuum limit results for the unpolarized parton
distribution function of the nucleon computed in lattice QCD. This study is the first continuum …

DK I = 0, I = 0, 1 scattering and the (2317) from lattice QCD

GKC Cheung, CE Thomas, DJ Wilson, G Moir… - Journal of High Energy …, 2021 - Springer
A bstract Elastic scattering amplitudes for I= 0 DK and I= 0, 1\(D\overline {K}\) are computed
in S, P and D partial waves using lattice QCD with light-quark masses corresponding to m …

Transversity parton distribution function of the nucleon using the pseudodistribution approach

C Egerer, C Kallidonis, J Karpie, N Karthik… - Physical Review D, 2022 - APS
We present a determination of the nonsinglet transversity parton distribution function (PDF)
of the nucleon, normalized with respect to the tensor charge at μ 2= 2 GeV 2 from lattice …

Isospin-1/2 Dπ scattering and the lightest resonance from lattice QCD

L Gayer, N Lang, SM Ryan, D Tims, CE Thomas… - Journal of High Energy …, 2021 - Springer
A bstract Isospin-1/2 Dπ scattering amplitudes are computed using lattice QCD, working in a
single volume of approximately (3. 6 fm) 3 and with a light quark mass corresponding to m …

Comparative performance analysis of Intel (R) Xeon Phi (TM), GPU, and CPU: a case study from microscopy image analysis

G Teodoro, T Kurc, J Kong, L Cooper… - 2014 IEEE 28th …, 2014 - ieeexplore.ieee.org
We study and characterize the performance of operations in an important class of
applications on GPUs and Many Integrated Core (MIC) architectures. Our work is motivated …

Axial-Vector Hadrons in Scattering from QCD

N Lang, DJ Wilson, Hadron Spectrum Collaboration) - Physical Review Letters, 2022 - APS
We present I= 1/2 D* π scattering amplitudes from lattice QCD and determine two low-lying
JP= 1+ axial-vector D 1 states and a JP= 2+ tensor D 2*. Computing finite-volume spectra at …

Excited and exotic charmonium, D s and D meson spectra for two light quark masses from lattice QCD

GKC Cheung, C O'Hara, G Moir, M Peardon… - Journal of High Energy …, 2016 - Springer
A bstract We present highly-excited charmonium, D s and D meson spectra from dynamical
lattice QCD calculations with light quarks corresponding to M π∼ 240 MeV and compare …