On the Feynman-Hellmann theorem in quantum field theory and the calculation of matrix elements

C Bouchard, CC Chang, T Kurth, K Orginos… - Physical Review D, 2017 - APS
The Feynman-Hellmann theorem can be derived from the long Euclidean-time limit of
correlation functions determined with functional derivatives of the partition function. Using …

Form Factors and Decay Rates from Lattice QCD with Physical Quark Masses

S Meinel - Physical Review Letters, 2017 - APS
The first lattice QCD calculation of the form factors governing Λ c→ Λ ℓ+ ν ℓ decays is
reported. The calculation was performed with two different lattice spacings and includes one …

from Möbius domain-wall fermions solved on gradient-flowed HISQ ensembles

N Miller, H Monge-Camacho, CC Chang, B Hörz… - Physical Review D, 2020 - APS
We report the results of a lattice quantum chromodynamics calculation of FK/F π using
Möbius domain-wall fermions computed on gradient-flowed N f= 2+ 1+ 1 highly improved …

Scale setting the Möbius domain wall fermion on gradient-flowed HISQ action using the omega baryon mass and the gradient-flow scales and

N Miller, L Carpenter, E Berkowitz, CC Chang, B Hörz… - Physical Review D, 2021 - APS
We report on a subpercent scale determination using the omega baryon mass and gradient-
flow methods. The calculations are performed on 22 ensembles of N f= 2+ 1+ 1 highly …

Hierarchical Semi-Sparse Cubes-parallel framework for storing multi-modal big data in HDF5

J Nádvorník, P Škoda, P Tvrdík - IEEE Access, 2023 - ieeexplore.ieee.org
Since Moore's law applies also to data detectors, the volume of data collected in astronomy
doubles approximately every year. A prime example is the upcoming Square Kilometer …

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

E Berkowitz, C Bouchard, CC Chang, MA Clark, B Joo… - Physical Review D, 2017 - APS
We report on salient features of a mixed lattice QCD action using valence Möbius domain-
wall fermions solved on the dynamical N f= 2+ 1+ 1 highly improved staggered quark sea …

An accurate calculation of the nucleon axial charge with lattice QCD

E Berkowitz, D Brantley, C Bouchard… - arxiv preprint arxiv …, 2017 - arxiv.org
We report on a lattice QCD calculation of the nucleon axial charge, $ g_A $, using M\"{o}
bius Domain-Wall fermions solved on the dynamical $ N_f= 2+ 1+ 1$ HISQ ensembles after …

Simulating the weak death of the neutron in a femtoscale universe with near-exascale computing

E Berkowitz, MA Clark, A Gambhir… - … conference for high …, 2018 - ieeexplore.ieee.org
The fundamental particle theory called Quantum Chromodynamics (QCD) dictates
everything about protons and neutrons, from their intrinsic properties to interactions that bind …

Detailed analysis of excited-state systematics in a lattice QCD calculation of

J He, DA Brantley, CC Chang, I Chernyshev… - Physical Review C, 2022 - APS
Excited state contamination remains one of the most challenging sources of systematic
uncertainty to control in lattice QCD calculations of nucleon matrix elements and form …

Progress in multibaryon spectroscopy

E Berkowitz, D Brantley, K McElvain… - arxiv preprint arxiv …, 2019 - arxiv.org
Anchoring the nuclear interaction in QCD is a long-outstanding problem in nuclear physics.
While the lattice community has made enormous progress in mesonic physics and single …