Coupled , scattering in -wave and the resonance from lattice QCD

DJ Wilson, RA Briceno, JJ Dudek, RG Edwards… - Physical Review D, 2015 - APS
We determine elastic and coupled-channel amplitudes for isospin-1 meson-meson
scattering in P wave, by calculating correlation functions using lattice QCD with light quark …

Axial, scalar, and tensor charges of the nucleon from -flavor Lattice QCD

T Bhattacharya, V Cirigliano, SD Cohen, R Gupta… - Physical Review D, 2016 - APS
We present results for the isovector axial, scalar, and tensor charges g A ud, g S ud, and g T
ud of the nucleon needed to probe the Standard Model and novel physics. The axial charge …

Isoscalar Scattering and the Meson Resonance from QCD

RA Briceno, JJ Dudek, RG Edwards, DJ Wilson… - Physical Review Letters, 2017 - APS
We present for the first time a determination of the energy dependence of the isoscalar π π
elastic scattering phase shift within a first-principles numerical lattice approach to QCD …

Isovector and isoscalar tensor charges of the nucleon from lattice QCD

T Bhattacharya, V Cirigliano, SD Cohen, R Gupta… - Physical Review D, 2015 - APS
We present results for the isovector and flavor diagonal tensor charges g T ud, g T u, g T d,
and g T s needed to probe novel tensor interactions at the TeV scale in neutron and nuclear …

Pion and kaon distribution amplitudes in the continuum limit

R Zhang, C Honkala, HW Lin, JW Chen - Physical Review D, 2020 - APS
We present a lattice-QCD calculation of the pion, kaon, and η s distribution amplitudes using
large-momentum effective theory. Our calculation is carried out using three ensembles with …

Strongly interacting dynamics and the search for new physics at the LHC

T Appelquist, RC Brower, GT Fleming, A Hasenfratz… - Physical Review D, 2016 - APS
We present results for the spectrum of a strongly interacting SU (3) gauge theory with N f= 8
light fermions in the fundamental representation. Carrying out nonperturbative lattice …

Adaptive aggregation-based domain decomposition multigrid for twisted mass fermions

C Alexandrou, S Bacchio, J Finkenrath, A Frommer… - Physical Review D, 2016 - APS
The adaptive aggregation-base domain decomposition multigrid method [A. Frommer, SIAM
J. Sci. Comput. 36, A1581 (2014)] is extended for two degenerate flavors of twisted mass …

Lattice finite-volume dependence of the nucleon parton distributions

HW Lin, R Zhang - Physical Review D, 2019 - APS
There have been rapid developments in the direct calculation of the Bjorken-x dependence
of parton distribution functions (PDFs) using lattice QCD, and the technique shows …

Exploring strange nucleon form factors on the lattice

R Babich, RC Brower, MA Clark, GT Fleming… - Physical Review D …, 2012 - APS
We discuss techniques for evaluating sea quark contributions to hadronic form factors on the
lattice and apply these to an exploratory calculation of the strange electromagnetic, axial …

Phase of the fermion determinant at nonzero chemical potential

K Splittorff, JJM Verbaarschot - Physical review letters, 2007 - APS
We show that in the microscopic domain of QCD (also known as the ϵ domain) at nonzero
chemical potential the average phase factor of the fermion determinant is nonzero for μ< m …