Flavor dependence of chiral odd generalized parton distributions and the tensor charge from the analysis of combined $\pi^0$ and $\eta$ exclusive electroproduction data

Gary. R. Goldstein; J. Osvaldo Gonzalez Hernandez; Simonetta Liuti

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arXiv · 1401.0438

Flavor dependence of chiral odd generalized parton distributions and the tensor charge from the analysis of combined $\pi^0$ and $\eta$ exclusive electroproduction data

Gary. R. Goldstein·J. Osvaldo Gonzalez Hernandez·Simonetta Liuti

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Abstract

Using a physically motivated parameterization based on the reggeized diquark model we perform a flavor separation of the chiral-odd generalized parton distributions obtained from both $\pi^0$ and $\eta$ exclusive electroproduction. In our approach we exploit a connection between the chiral-even and chiral-odd reduced helicity amplitudes using Parity transformations that are relevant for a class of models that includes two-component models. We compare our results for $\eta$ production to the previously obtained $\pi^0$ results, and we make predictions for the transverse single spin asymmetry components which will be measured within the Jefferson Lab 12 GeV program.

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Gary. R. Goldstein, J. Osvaldo Gonzalez Hernandez, Simonetta Liuti. 2014-01-02. Flavor dependence of chiral odd generalized parton distributions and the tensor charge from the analysis of combined $\pi^0$ and $\eta$ exclusive electroproduction data. https://arxiv.org/abs/1401.0438

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