SelectedWorks - Konstantinos "Kostas" Orginos

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Selected Works of Konstantinos "Kostas" Orginos

Calkins-Ritter Professor of Physics

Konstantinos "Kostas" Orginos' research interests include Nuclear and Particle Physics; Lattice QCD; Algorithms for Lattice Field Theory; Computational physics.

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About Konstantinos "Kostas" Orginos

Konstantinos "Kostas" Orginos' research interests include Nuclear and Particle Physics; Lattice QCD; Algorithms for Lattice Field Theory; Computational physics.

Present	Calkins-Ritter Professor of Physics, William & Mary ‐ Physics Department
Institution Organization Position Type Position Title Time Period to Options Current Position Affiliate my profile with this Institution

Physics

Articles (47)

The continuum and leading twist limits of parton distribution functions ...

Journal of High Energy Physics (2021)

Joseph Karpie, Kostas Orginos, Anatoly Radyushkin and Savvas Zafeiropoulos

In this study, we present continuum limit results for the unpolarized parton distribution function of the nucleon computed in lattice ...

Towards high-precision parton distributions from lattice QCD via distillation

Journal of High Energy Physics (2021)

Colin Egerer, Robert G. Edwards, Christos Kallidonis, Kostas Orginos, et al.

We apply the Distillation spatial smearing program to the extraction of the unpolarized isovector valence PDF of the nucleon. The ...

Unpolarized gluon distribution in the nucleon from lattice quantum chromodynamics

Physical Review D (2021)

Tanjib Khan, Raza Sabbir Sufian, . ..., Kostas Orginos, et al.

In this study, we present a determination of the unpolarized gluon Ioffe-time distribution in the nucleon from a first principles ...

Lattice QCD Constraints on the Parton Distribution Functions of 3 ...

Physical Review Letters (2021)

William Detmold, Marc Illa, . ..., Kostas Orginos, et al.

The fraction of the longitudinal momentum of 3He that is carried by the isovector combination of u and d quarks is determined using lattice QCD for ...

A.I. for nuclear physics

The European Physical Journal A (2021)

Paulo Bedaque, Amber Boehnlein, . ..., Kostas Orginos, et al.

This report is an outcome of the workshop AI for Nuclear Physics held at Thomas Jefferson National Accelerator Facility on ...

Low-energy scattering and effective interactions of two baryons at m ...

Physical Review D (2021)

Marc Illa, Silas R. Beane, . ..., Kostas Orginos, et al.

The interactions between two octet baryons are studied at low energies using lattice quantum chromodynamics (LQCD) with larger-than-physical quark masses ...

Nuclear matrix elements from lattice QCD for electroweak and beyond-Standard-Model ...

Physics Reports (2021)

Zohreh Davoudi, William Detmold, Phiala Shanahan, Kostas Orginos, et al.

Over the last decade, numerical solutions of Quantum Chromodynamics (QCD) using the technique of lattice QCD have developed to a point where ...

Distillation at high momentum

Physical Review D (2021)

Colin Egerer, Robert G. Edwards, Kostas Orginos and David G. Richards

Extraction of hadronic observables at finite momenta from lattice QCD (LQCD) is constrained by the well-known signal-to-noise problems afflicting all ...

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

Journal of High Energy Physics (2021)

Luigi Del Debbio, Tommaso Giani, Joseph Karpie, Kostas Orginos, et al.

We extract two nonsinglet nucleon Parton Distribution Functions from lattice QCD data for reduced Ioffe-time pseudodistributions. We perform such analysis ...

Parton Distribution Functions from Ioffe Time Pseudodistributions from Lattice Calculations ...

Physical Review Letters (2020)

Bálint Joó, Joseph Karpie, Kostas Orginos and et al.

We present results for the unpolarized parton distribution function of the nucleon computed in lattice QCD at the physical pion ...

Pion valence quark distribution from current-current correlation in lattice QCD

Physical Review D (2020)

Raza Sabbir Sufian, Colin Egerer, . ..., Kostas Orginos, et al.

We extract the pion valence quark distribution qπv(x) from lattice QCD (LQCD) calculated matrix elements of spacelike correlations of one vector and ...

F K / F π from Möbius domain-wall fermions solved on ...

Physical Review D (2020)

Nolan Miller, Henry Monge-Camacho, . ..., Christopher J. Monahan, et al.

We report the results of a lattice quantum chromodynamics calculation of FK/Fπ using Möbius domain-wall fermions computed on gradient-flowed Nf=2+1+1 highly improved staggered quark ...

Pion valence quark distribution from matrix element calculated in lattice ...

Physical Review D (2019)

Raza Sabbir Sufian, Joseph Karpie, Colin Egerer, Kostas Orginos, et al.

We present the first exploratory lattice QCD calculation of the pion valence quark distribution extracted from spatially separated current-current correlations ...

Reconstructing parton distribution functions from Ioffe time data: from Bayesian ...

Journal of High Energy Physics (2019)

Joseph Karpie, Kostas Orginos, Alexander Rothkopf and Savvas Zafeiropoulos

The computation of the parton distribution functions (PDF) or distribution amplitudes (DA) of hadrons from first principles lattice QCD constitutes ...

Moments of Ioffe time parton distribution functions from non-local matrix ...

Journal of High Energy Physics (2018)

Joseph Karpie, Kostas Orginos and Savvas Zafeiropoulos

We examine the relation of moments of parton distribution functions to matrix elements of non-local operators computed in lattice quantum ...

A per-cent-level determination of the nucleon axial coupling from quantum ...

C. C. Chang, A. N. Nicholson, . ..., Kostas Orginos, et al.

The axial coupling of the nucleon, gA, is the strength of its coupling to the weak axial current of the standard ...

Parton distributions and lattice QCD calculations: A community white paper

Progress in Particle and Nuclear Physics (2018)

Huey-Wen Lin, Emanuele R. Nocera, Fred Olness, Kostas Orginos, et al.

In the framework of quantum chromodynamics (QCD), parton distribution functions (PDFs) quantify how the momentum and spin of a hadron are divided among its quark and gluon constituents. ...

Scalar, Axial, and Tensor Interactions of Light Nuclei from Lattice ...

PHYSICAL REVIEW LETTERS (2018)

Emmanuel Chang, Zohreh Davoudi, William Detmold, Arjun S. Gambhir, et al.

Complete flavor decompositions of the matrix elements of the scalar, axial, and tensor currents in the proton, deuteron, diproton, and ...

Baryon-baryon interactions and spin-flavor symmetry from lattice quantum chromodynamics

PHYSICAL REVIEW D (2017)

Michael L. Wagman, Frank Winter, Emmanuel Chang, Zohreh Davoudi, et al.

Lattice quantum chromodynamics is used to constrain the interactions of two octet baryons at the SU(3) flavor-symmetric point, with quark ...

First lattice QCD study of the gluonic structure of light ...

PHYSICAL REVIEW D (2017)

Frank Winter, and Phiala E. Shanahan

The role of gluons in the structure of the nucleon and light nuclei is investigated using lattice quantum chromodynamics (QCD) ...

Mobius domain-wall fermions on gradient-flowed dynamical HISQ ensembles

PHYSICAL REVIEW D (2017)

Evan Berkowitz, Chris Bouchard, Chia Cheng Chang, M. A. Clark, et al.

We report on salient features of a mixed lattice QCD action using valence Mobius domain-wall fermions solved on the dynamical ...

Double-beta decay matrix elements from lattice quantum chromodynamics

PHYSICAL REVIEW D (2017)

Brian C. Tiburzi, Michael L. Wagman, Frank Winter, Emmanuel Chang, et al.

A lattice quantum chromodynamics (LQCD) calculation of the nuclear matrix element relevant to the nn -> ppee (nu) over bar ...

Isotensor Axial Polarizability and Lattice QCD Input for Nuclear Double-beta ...

PHYSICAL REVIEW LETTERS (2017)

Phiala E. Shanahan, Brian C. Tiburzi, Michael L. Wagman, Frank Winter, et al.

The potential importance of short-distance nuclear effects in double-beta decay is assessed using a lattice QCD calculation of the nn ...

Proton-Proton Fusion and Tritium beta Decay from Lattice Quantum Chromodynamics

Physical Review Letters (2017)

Martin J. Savage, Phiala E. Shanahan, Brian C. Tiburzi, ..., et al.

The nuclear matrix element determining the pp -> de(+)v fusion cross section and the Gamow-Teller matrix element contributing to tritium ...

On the Feynman-Hellmann theorem in quantum field theory and the ...

PHYSICAL REVIEW D (2017)

Chris Bouchard, Chia Cheng Chang, Thorsten Kurth, Kostas Orginos, et al.

The Feynman-Hellmann theorem can be derived from the long Euclidean-time limit of correlation functions determined with functional derivatives of the ...