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arXiv · 1612.08728

Parton Distributions from Lattice QCD with Momentum Smearing

Constantia Alexandrou·Krzysztof Cichy·Martha Constantinou·Kyriakos Hadjiyiannakou·Karl Jansen·Fernanda Steffens·Christian Wiese
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Abstract

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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Constantia Alexandrou, Krzysztof Cichy, Martha Constantinou, Kyriakos Hadjiyiannakou, Karl Jansen, Fernanda Steffens, Christian Wiese. 2017-01-10. Parton Distributions from Lattice QCD with Momentum Smearing. https://arxiv.org/abs/1612.08728

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