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arXiv · 1007.2717

Exclusive pion electroproduction and transversity

P. Kroll
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Abstract

In this talk it is reported on an analysis of hard exclusive pion electroproduction within the handbag approach. Particular emphasis is laid on single-spin asymmetries. It is argued that a recent HERMES measurement of asymmetries measured with a transversely polarized target clearly indicate the occurrence of strong contributions from transversely polarized photons. Within the handbag approach such gamma_T --> pion transitions are described by the transversity GPDs accompanied by a twist-3 pion wave function. It is shown that this approach leads to results on cross sections and single-spin asymmetries in fair agreement with experiment.

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P. Kroll. 2010-07-16. Exclusive pion electroproduction and transversity. https://doi.org/10.1142/9789814329569_0013

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