Results on the disconnected contributions for hadron structure
arXiv:1410.8761
Abstract
We present results on the disconnected contributions to three point functions entering in studies of hadron structure. We use $N_F = 2+1+1$ twisted mass fermions and give a detailed description on the results of the nucleon Ï-terms, isoscalar axial charge and first moments of bare parton distributions for a range of pions masses. In addition we give the Ï-terms and the computations are performed using QUDA code implemented on GPUs.
7 pages, 15 figures. Proceedings of the Lattice 2014 conference. v2 fixes captions of figures 1 and 2