Basic properties of GPDs and modelling of the latter
High Energy Physics - Phenomenology
2019-12-20 v1 Nuclear Theory
Abstract
We present here a new method based on the Radon transform to model Generalised Parton Distributions (GPDs). It allows to fulfil all theoretical constraints applying on GPDs, especially polynomiality and positivity at the same time. More specifically, we show how polynomiality can be systematically restored within the framework of the overlaps of Lightfront Wave Functions (LFWFs). It provides a systematic way to extend models defined solely in the DGLAP kinematical region to the ERBL one. We then exemplify our approach using LFWFs models.
Keywords
Cite
@article{arxiv.1912.09106,
title = {Basic properties of GPDs and modelling of the latter},
author = {Cédric Mezrag and Nabil Chouika and Hervé Moutarde and Jose Rodriguez-Quintero},
journal= {arXiv preprint arXiv:1912.09106},
year = {2019}
}
Comments
Contribution to the proceedings of Lightcone 2019, \'Ecole Polytechnique, Palaiseau, France