%0 Conference Paper
%A Syritsyn, S.
%A Blum, T.
%A Engelhardt, M.
%A Green, J.
%A Izubuchi, T.
%A Jung, C.
%A Krieg, S.
%A Lin, M.
%A Meinel, S.
%A Negele, J.
%A Ohta, S.
%A Pochinsky, A.
%A Shintani, E.
%T Initial nucleon structure results with chiral quarks at the physical point
%V LATTICE2014
%N PoS(LATTICE2014)134
%@ 1824-8039
%C Trieste
%I SISSA
%M FZJ-2015-03322
%M PoS(LATTICE2014)134
%M RBRC 1103
%M MIT-CTP/4621
%M KEK-TH-1784
%B Proceedings of Science
%P 134
%D 2015
%X We report initial nucleon structure results computed on lattices with 2+1 dynamical M\'obius domain wall fermions at the physical point generated by the RBC and UKQCD collaborations. At this stage, we evaluate only connected quark contributions. In particular, we discuss the nucleon vector and axial-vector form factors, nucleon axial charge and the isovector quark momentum fraction. From currently available statistics, we estimate the stochastic accuracy of the determination of $g_A$ and $<x>_{u-d}$ to be around 10%, and we expect to reduce that to 5% within the next year. To reduce the computational cost of our calculations, we extensively use acceleration techniques such as low-eigenmode deflation and all-mode-averaging (AMA). We present a method for choosing optimal AMA parameters.
%B The 32nd International Symposium on Lattice Field Theory
%C 23 Jun 2014 - 28 Jun 2014, Columbia University, New York, NY (USA)
Y2 23 Jun 2014 - 28 Jun 2014
M2 Columbia University, New York, NY, USA
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
%9 Contribution to a conference proceedingsInternal Report
%U https://juser.fz-juelich.de/record/201008