Unpolarized and helicity generalized parton distributions of the proton within lattice QCD
C Alexandrou, K Cichy, M Constantinou… - Physical review …, 2020 - APS
We present the first calculation of the x dependence of the proton generalized parton
distributions (GPDs) within lattice QCD. Results are obtained for the isovector unpolarized …
distributions (GPDs) within lattice QCD. Results are obtained for the isovector unpolarized …
Reconstructing QCD spectral functions with Gaussian processes
We reconstruct ghost and gluon spectral functions in 2+ 1 flavor QCD with Gaussian process
regression. This framework allows us to largely suppress spurious oscillations and other …
regression. This framework allows us to largely suppress spurious oscillations and other …
Reconstructing parton distribution functions from Ioffe time data: from Bayesian methods to Neural Networks
A bstract The computation of the parton distribution functions (PDF) or distribution
amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open …
amplitudes (DA) of hadrons from first principles lattice QCD constitutes a central open …
Transversity GPDs of the proton from lattice QCD
C Alexandrou, K Cichy, M Constantinou… - Physical Review D, 2022 - APS
We present the first calculation of the x dependence of the isovector transversity generalized
parton distributions (GPDs) for the proton within lattice QCD. We compute the matrix …
parton distributions (GPDs) for the proton within lattice QCD. We compute the matrix …
Flavor nonsinglet parton distribution functions from lattice QCD at physical quark masses via the pseudodistribution approach
M Bhat, K Cichy, M Constantinou, A Scapellato - Physical Review D, 2021 - APS
One of the great challenges of QCD is to determine the partonic structure of the nucleon from
first principles. In this work, we provide such a determination of the flavor nonsinglet (ud) …
first principles. In this work, we provide such a determination of the flavor nonsinglet (ud) …
Numerical analytic continuation of Euclidean data
RA Tripolt, P Gubler, M Ulybyshev… - Computer Physics …, 2019 - Elsevier
In this work we present a direct comparison of three different numerical analytic continuation
methods: the Maximum Entropy Method, the Backus–Gilbert method and the Schlessinger …
methods: the Maximum Entropy Method, the Backus–Gilbert method and the Schlessinger …
Nonperturbative strong coupling at timelike momenta
We compute the strong coupling constant of Landau gauge QCD in the full complex
momentum plane, both directly and via spectral reconstruction. In particular, we consider the …
momentum plane, both directly and via spectral reconstruction. In particular, we consider the …
Continuum limit of parton distribution functions from the pseudodistribution approach on the lattice
M Bhat, W Chomicki, K Cichy, M Constantinou… - Physical Review D, 2022 - APS
Precise quantification of the structure of nucleons is one of the crucial aims of hadronic
physics for the coming years. The expected progress related to ongoing and planned …
physics for the coming years. The expected progress related to ongoing and planned …
Hybrid Monte Carlo study of competing order in the extended fermionic Hubbard model on the hexagonal lattice
Using first-principle Hybrid Monte Carlo (HMC) simulations, we carry out an unbiased study
of the competition between spin-density wave (SDW) and charge-density wave (CDW) order …
of the competition between spin-density wave (SDW) and charge-density wave (CDW) order …
Electric conductivity in finite-density lattice gauge theory with dynamical fermions
PV Buividovich, D Smith, L von Smekal - Physical Review D, 2020 - APS
We study the dependence of the electric conductivity on chemical potential in finite-density
SU (2) gauge theory with N f= 2 flavors of rooted staggered sea quarks, in combination with …
SU (2) gauge theory with N f= 2 flavors of rooted staggered sea quarks, in combination with …