Elastic Meson Production - Factorisation and Gauge Invariance
classification
✦ hep-ph
keywords
factorisationgaugeinvariancemesonproductionamplitudecancellationconsidered
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The factorisation of the hard amplitude for exclusive meson production in deep inelastic scattering is considered in the framework of a simple model. It is demonstrated explicitly how gauge invariance ensures the cancellation of non-factorising contributions.
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