%0 Journal Article
%A Chambers, A. J.
%A Dragos, J.
%A Horsley, R.
%A Nakamura, Y.
%A Perlt, H.
%A Pleiter, D.
%A Rakow, P. E. L.
%A Schierholz, G.
%A Schiller, A.
%A Somfleth, K.
%A Stüben, H.
%A Young, R. D.
%A Zanotti, J. M.
%T Electromagnetic form factors at large momenta from lattice QCD
%J Physical review / D
%V 96
%N 11
%@ 2470-0010
%C Woodbury, NY
%I Inst.
%M FZJ-2018-01202
%P 114509
%D 2017
%X Accessing hadronic form factors at large momentum transfers has traditionally presented a challenge for lattice QCD simulations. Here, we demonstrate how a novel implementation of the Feynman-Hellmann method can be employed to calculate hadronic form factors in lattice QCD at momenta much higher than previously accessible. Our simulations are performed on a single set of gauge configurations with three flavors of degenerate mass quarks corresponding to mπ≈470  MeV. We are able to determine the electromagnetic form factors of the pion and nucleon up to approximately 6  GeV2, with results for the ratio of the electric and magnetic form factors of the proton at our simulated quark mass agreeing well with experimental results.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000418657500009
%R 10.1103/PhysRevD.96.114509
%U https://juser.fz-juelich.de/record/843620