Nucleon spin and quark content at the physical point
  We present results on the spin and quark content of the nucleon using $N_f=2$ twisted mass clover-improved fermion simulations with a pion mass close to its physical value. We use recently developed methods to obtain accurate results for both connected and disconnected contributions. We provide results for the axial charge, quark and gluon momentum fraction as well as the light, strange and charm $\sigma$-terms. 
C. Alexandrou (Univ. of Cyprus and The Cyprus Inst.), M. Constantinou,   K. Hadjiyiannakou, Ch. Kallidonis, G. Koutsou (The ...
hep-lat hep-ph nucl-th