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An SU(3) model for octet baryon and meson fragmentation

D. Indumathi·H. S. Mani·Anubha Rastogi
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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, α(x, Q^2), β(x, Q^2), and γ(x, Q^2). With the introduction of an SU(3) breaking parameter, λ, 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.

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D. Indumathi, H. S. Mani, Anubha Rastogi. 1998-02-14. An SU(3) model for octet baryon and meson fragmentation. https://doi.org/10.1103/physrevd.58.094014

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