Insights into the higher-twist distribution $e(x)$ at CLAS
Abstract
This preprint has been superseded by (A. Courtoy, A. S. Miramontes, H. Avakian, M. Mirazita, and S. Pisano, Phys. Rev. D 106, 014027 (2022), 2203.14975). The latter should be consulted and referred to for the extraction of the PDF. We present the extraction of the twist-3 PDF, , through the analysis of the preliminary data for the -moment of the beam-spin asymmetry for di-hadron Semi-Inclusive DIS at CLAS at 6 GeV. Pion-pair production off unpolarized target in the DIS regime provide an access to the higher-twist Parton Distribution Functions and to Di-hadron Fragmentation Functions. The latter have been extracted from the semi-inclusive production of two hadron pairs in back-to-back jets in annihilation at Belle. The PDF offers important insights into the physics of the largely-unexplored quark-gluon correlations, and its -integral is related to the marginally-known scalar-charge of the nucleon, and to the pion-nucleon -term, a fundamental property of the nucleon.
Keywords
Cite
@article{arxiv.1405.7659,
title = {Insights into the higher-twist distribution $e(x)$ at CLAS},
author = {A. Courtoy},
journal= {arXiv preprint arXiv:1405.7659},
year = {2022}
}
Comments
Note to point to the updated and published analysis that supersedes this one