Baryon Axial Charges and Momentum Fractions with N_f=2+1 Dynamical   Fermions
  We report on recent results of the QCDSF/UKQCD Collaboration on investigations of baryon structure using configurations generated with N_f=2+1 dynamical flavours of O(a) improved Wilson fermions. With the strange quark mass as an additional dynamical degree of freedom in our simulations we avoid the need for a partially quenched approximation when investigating the properties of particles containing a strange quark, e.g. the hyperons. In particular, we will focus on the nucleon and hyperon axial charges and quark momentum fractions. 
M. G\"ockeler, Ph. H\"agler, R. Horsley, Y. Nakamura, D. Pleiter, P.   E. L. Rakow, A. Sch\"afer, G. Schierholz, H. St\"uben...
hep-lat hep-ph