Parton Distributions from Lattice QCD with Momentum Smearing
  In this work we continue our effort to explore a recent proposal, which allows light-cone distributions to be extracted from purely spatial correlations, being thus accessible to lattice methods. In order to test the feasibility of this method, we present our latest results from a twisted mass lattice calculation of the flavor non-singlet momentum, helicity and transversity distributions of the nucleon. Furthermore, we apply a newly proposed momentum improved smearing, which has the potential to reach higher nucleon momenta as required for a safe matching procedure to the physical distribution functions. 
Constantia Alexandrou, Krzysztof Cichy, Martha Constantinou, Kyriakos   Hadjiyiannakou, Karl Jansen, Fernanda Steffens, Chri...
hep-lat hep-ph