TY  - JOUR
AU  - Chambers, A. J.
AU  - Dragos, J.
AU  - Horsley, R.
AU  - Nakamura, Y.
AU  - Perlt, H.
AU  - Pleiter, D.
AU  - Rakow, P. E. L.
AU  - Schierholz, G.
AU  - Schiller, A.
AU  - Somfleth, K.
AU  - Stüben, H.
AU  - Young, R. D.
AU  - Zanotti, J. M.
TI  - Electromagnetic form factors at large momenta from lattice QCD
JO  - Physical review / D
VL  - 96
IS  - 11
SN  - 2470-0010
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2018-01202
SP  - 114509
PY  - 2017
AB  - 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.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000418657500009
DO  - DOI:10.1103/PhysRevD.96.114509
UR  - https://juser.fz-juelich.de/record/843620
ER  -