Modeling spin effects in electron-positron annihilation to hadrons
Abstract
The string+ model of spin-dependent hadronization is applied to the fragmentation of a string stretched between a quark and an antiquark with entangled spin states, assumed to be produced in the annihilation process. The model accounts systematically for the spin correlations in the hadronization chain and is formulated as a recursive recipe suitable for the implementation in a Monte Carlo event generator. The recipe is applied to the production of two back-to-back pseudoscalar mesons produced in annihilation, and it is shown to reproduce the form of the azimuthal distribution of the hadrons as expected in QCD.
Cite
@article{arxiv.2311.03827,
title = {Modeling spin effects in electron-positron annihilation to hadrons},
author = {A. Kerbizi and X. Artru},
journal= {arXiv preprint arXiv:2311.03827},
year = {2023}
}
Comments
5 pages, 2 figures, to appear in the proceedings of 20th International Conference on Hadron Spectroscopy and Structure (HADRON 2023)