[Hadstruct] [EXTERNAL] Re: Proposed abstracts for Lattice 2021

[Savvas Zafeiropoulos]

Dear All,

here is my abstract and title for lattice 2021

*Progress on the extraction of parton distributions from Ioffe time
distributions*

The light-cone definition of Parton Distribution Functions (PDFs) does not
allow for a direct ab initio determination employing methods of Lattice QCD
simulations that naturally take place in Euclidean spacetime. In this
presentation we focus on pseudo-PDFs where the starting point is the equal
time hadronic matrix element with the quark and anti-quark fields separated
by a finite distance. We focus on Ioffe-time distributions, which are
functions of the Ioffe-time ν, and can be understood as the Fourier
transforms of parton distribution functions with respect to the momentum
fraction variable x. We present lattice results for the case of the nucleon
addressing the physical point and continuum extrapolations. We also
incorporate our lattice data in the NNPDF framework treating them on the
same footing as experimental data and discuss in detail the different
sources of systematics in the determination of the non-singlet PDFs.

Since I am going to present results from three published papers all the
authors of those papers will be contributors for my talk in the indico
website.
If anyone has a suggestion/correction etc please let me know!

Best,
Savvas

On Wed, Apr 28, 2021 at 3:55 PM Raza Sufian <sufian at jlab.org> wrote:

> Dear All,
>
> Below please find the proposed abstracts for the Lattice 2021 conference.
> The deadline for abstract submission is on Friday, April 30. Please try to
> circulate your abstracts sometime tomorrow for comments. Please let us know
> if I forgot to list any other proposed abstract.
>
> CK: Nucleon valence distribution using distillation
>
> SZ: Nucleon valence distribution (continuum limit, physical point
> extrapolation + NNPDF analysis)
>
> TK: Unpolarized gluon distribution
>
> JK: RBC/UKQCD
>
> NK: Transversity
>
> RSS: Polarized gluon distribution
>
> WM: Perturbative matching for …
>
>
> *TBD:*
>
> Patrick Barry
>
> CE
>
> Thank you.
> -Raza
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