PoS - Proceedings of Science
Volume 363 - 37th International Symposium on Lattice Field Theory (LATTICE2019) - Main session
Quasi-PDFs with twisted mass fermions
C. Alexandrou, K. Cichy*, M. Constantinou, K. Hadjiyiannakou, K. Jansen, A. Scapellato and F. Steffens
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Pre-published on: January 03, 2020
Published on: August 27, 2020
We discuss the recent progress in extracting partonic functions from the quasi-distribution approach, using twisted mass fermions. This concerns, among others, the investigation of several sources of systematic effects. Their careful analysis is a prerequisite to obtain precise determinations of PDFs from the lattice with realistic estimates of all uncertainties.
In these proceedings, we shortly discuss systematic effects in the matching procedure.
Moreover, we present preliminary results from our new simulations at the physical point. They involve, additionally, the dynamical strange and charm quarks, as well as a larger volume and a smaller lattice spacing than in our previous computations. In addition, we show first results from computations of generalized parton distributions (GPDs) in the quasi-distribution framework.
DOI: https://doi.org/10.22323/1.363.0036
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