Abstract
A Regge-plus-resonance (RPR) description of the p(γ,K)Y and p(e, e′K)Y processes (Y = Λ,Σ 0,+) is presented. The proposed reaction amplitude consists of Regge-trajectory exchanges in the t channel, supplemented with a limited selection of s-channel resonance diagrams. The RPR framework contains a considerably smaller number of free parameters than a typical effective-Lagrangian model. Nevertheless, it provides an acceptable overall description of the photo- and electroproduction observables over an extensive photon energy range. It is shown that the electroproduction response functions and polarization observables are particularly useful for fine-tuning both the background and resonance parameters.
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Corthals, T., Van Cauteren, T., Ryckebusch, J., Ireland, D.G. (2007). Electromagnetic KY production from the proton in a Regge-plus-resonance approach. In: Pochodzalla, J., Walcher, T. (eds) Proceedings of The IX International Conference on Hypernuclear and Strange Particle Physics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-76367-3_70
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DOI: https://doi.org/10.1007/978-3-540-76367-3_70
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