Higher Twist Effects in Parton Fragmentation Functions

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We study twist expansions for parton fragmentation functions based on the definition of the twist as an invariant matrix element of a light-cone, bilocal operator. The results are then applied to a method which might be used to extract higher twist effects in the fragmentation sector using both $e^+ e^-$, and $e^- p$ collisions. We discuss how to apply the later measurements to experiments at the Jefferson National Acceleration Facility.
18 pages, 6 figures

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Nuclear Theory

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http://salesiana.dossiersoluciones.com/handle/123456789/82452

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/nucl-th/0505060
 http://arxiv.org/abs/nucl-th/0505060

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arXiv