The role of hyperon resonances in p(gamma,K+)Lambda processes

Abstract

We discuss the role of hyperon resonances in the u-channel when modeling p (gamma,K+)Lambda processes in an effective Lagrangian approach. Without the introduction of hyperon resonances, one is forced to use soft hadronic form factors with a cutoff mass which is at best two times the kaon mass. After inclusion of the hyperon resonances in the u-channel, we obtain a fair description of the data with a cutoff mass of the order of 1.8 GeV.

7 pages, 7 eps figures, submitted to Eur. Phys. J. A

Cited by in corpus (36)

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• $\varphi$ photoprodution with coupled-channel effects
• Lambda(1520) photoproduciton off the proton target with Regge contributions
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• Electric and magnetic form factors of strange baryons
• Constraints on background contributions from K+ Lambda electroproduction
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• $K^{+}\Lambda$ photoproduction at forward angles and low momentum transfer
• Scaling and Resonances in Elementary K^+ Lambda Photoproduction
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• Progress and Issues in the Electromagnetic Production of Kaon on the Nucleon
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