Excited State Contributions to the Heavy Baryon Fragmentation Functions in a Quark-Diquark Model

Details Excited State Contributions to the Heavy Baryon Fragmentation Functions in a Quark-Diquark Model Excited State Contributions to the Heavy Baryon Fragmentation Functions in a Quark-Diquark Model

2000-09-26

arxiv.org/abs/hep-ph/0009300v1

Phys.Rev. D64 (2001) 014021

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTeX2e 27 pages with 9 PostScript figures

Scientific paper

10.1103/PhysRevD.64.014021

Spin dependent fragmentation functions for heavy flavor quarks to fragment into heavy baryons are calculated in a quark-diquark model. The production of intermediate spin 1/2 and 3/2 excited states is explicity included. The resulting $\Lambda_b$ production rate and polarization at LEP energies are in agreement with experiment. The $\Lambda_c$ and $\Xi_c$ functions are also obtained. The spin independent $f_1(z)$ is compared to data. The integrated values for production rates agree with the data.

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