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Showing 1 to 2 of 2 for “"production amplitudes"”.
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Quantum electrodynamic model for production amplitudes at infinite momentum
"The scattering amplitude for the production of an arbitrary number of electron"" positron pairs in electron-electron collisions is calculated in a infinite momentum field theory model. More precisely, the model considers only events where"" the center of momentum energy is, much larger, than …
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Exclusive Production of Quarkonia and Generalized Parton Distributions
… We investigated exclusive photo and electroproduction of heavy vector mesons (the quarkonia J/ψ and ϒ), which can give access to the currently poorly constrained gluon distribution Eg. For this reason, we implemented a model for it with several variants in order to represent a spread of …