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Parton Distributions from Lattice QCD with Momentum Smearing

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arxiv 1612.08728 v2 pith:AU54PO75 submitted 2016-12-27 hep-lat hep-ph

classification hep-lathep-ph
keywords distributionslatticemomentumnucleonsmearingaccessibleallowsapply
verification ladder T0 review T1 audit T2 compute T3 formal

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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.

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