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arXiv · hep-ph/0210079

Leading-twist two gluon distribution amplitude and exclusive processes involving eta and eta' mesons

K. Passek
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Abstract

I briefly review the formalism for treating the leading-twist two-gluon states appearing in processes which involve eta and eta' mesons. The constraints on the size of the lowest order Gegenbauer coefficients of the two-gluon distribution amplitude are obtained from the fit to the eta and eta' transition form factor data. The results are applied to chi -> eta eta (eta' eta') decays and deeply virtual electroproduction of eta and eta' mesons.

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K. Passek. 2002-10-04. Leading-twist two gluon distribution amplitude and exclusive processes involving eta and eta' mesons. https://doi.org/10.1142/9789812776211_0017

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