TY  - CONF
AU  - Syritsyn, S.
AU  - Blum, T.
AU  - Engelhardt, M.
AU  - Green, J.
AU  - Izubuchi, T.
AU  - Jung, C.
AU  - Krieg, S.
AU  - Lin, M.
AU  - Meinel, S.
AU  - Negele, J.
AU  - Ohta, S.
AU  - Pochinsky, A.
AU  - Shintani, E.
TI  - Initial nucleon structure results with chiral quarks at the physical point
VL  - LATTICE2014
IS  - PoS(LATTICE2014)134
SN  - 1824-8039
CY  - Trieste
PB  - SISSA
M1  - FZJ-2015-03322
M1  - PoS(LATTICE2014)134
M1  - RBRC 1103
M1  - MIT-CTP/4621
M1  - KEK-TH-1784
T2  - Proceedings of Science
SP  - 134
PY  - 2015
AB  - 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.
T2  - The 32nd International Symposium on Lattice Field Theory
CY  - 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
LB  - PUB:(DE-HGF)8 ; PUB:(DE-HGF)15
UR  - https://juser.fz-juelich.de/record/201008
ER  -