Volume 396 - The 38th International Symposium on Lattice Field Theory (LATTICE2021) - Oral presentation
Relating Euclidean correlators and light-cone correlators beyond leading twist
S. Bhattacharya, K. Cichy, M. Constantinou, A. Metz*, A. Scapellato and F. Steffens
*: corresponding author
Full text: pdf
Pre-published on: May 16, 2022
Published on: July 08, 2022
Abstract
A perturbative matching procedure is needed in order to relate the parton quasi-distributions, that are calculable in lattice-QCD, to the corresponding light-cone distributions which enter physical processes. In the past, this type of matching has been studied extensively for twist-2 distributions. Here, we report on our recent calculation of matching coefficients for the twist-3 parton distributions $g_T(x)$, $e(x)$ and $h_L(x)$. A focus of the presentation are zero-mode contributions which pose a challenge for the matching procedure. We also briefly address the latest twist-3 matching results by other authors which include, in particular, quark-gluon-quark correlations.
DOI: https://doi.org/10.22323/1.396.0105
How to cite

Metadata are provided both in article format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in proceeding format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.