An SU(3) model for octet baryon and meson fragmentation
Abstract
The production of the octet of baryons and mesons in e^+ e^- collisions is analysed, based on considerations of SU(3) symmetry and a simple model for SU(3) symmetry breaking in fragmentation functions. All fragmentation functions, D_q^h(x, Q^2), describing the fragmentation of quarks into a member of the baryon octet (and similarly for fragmentation into members of the meson octet) are expressed in terms of three SU(3) symmetric functions, \alpha(x, Q^2), \beta(x, Q^2), and \gamma(x, Q^2). With the introduction of an SU(3) breaking parameter, \lambda, the model is successful in describing hadroproduction data at the Z pole. The fragmentation functions are then evolved using leading order evolution equations and good fits to currently available data at 34 GeV and at 161 GeV are obtained.
Cite
@article{arxiv.hep-ph/9802324,
title = {An SU(3) model for octet baryon and meson fragmentation},
author = {D. Indumathi and H. S. Mani and Anubha Rastogi},
journal= {arXiv preprint arXiv:hep-ph/9802324},
year = {2014}
}
Comments
24 pages LaTeX file including 11 postscript figure files