%0 Journal Article
%A Green, J. R.
%A Negele, J. W.
%A Pochinsky, A. V.
%A Syritsyn, S. N.
%A Engelhardt, M.
%A Krieg, S.
%T Nucleon electromagnetic form factors from lattice QCD using a nearly physical pion mass
%J Physical review / D
%V 90
%N 7
%@ 1550-7998
%C [S.l.]
%I Soc.
%M FZJ-2014-05355
%P 074507
%D 2014
%Z arXiv:1404.4029
%X We present lattice QCD calculations of nucleon electromagnetic form factors using pion masses mπ=149, 202, and 254 MeV and an action with clover-improved Wilson quarks coupled to smeared gauge fields, as used by the Budapest-Marseille-Wuppertal Collaboration. Particular attention is given to the removal of the effects of excited-state contamination by calculations at three source-sink separations and the use of the summation and generalized pencil-of-function methods. The combination of a calculation at the nearly physical mass mπ=149  MeV in a large spatial volume (mπLs=4.2) and the removal of excited-state effects yields agreement with experiment for the electric and magnetic form factors GE(Q2) and GM(Q2) up to Q2=0.5  GeV2.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000344027700008
%R 10.1103/PhysRevD.90.074507
%U https://juser.fz-juelich.de/record/171793