On the ratio Σ0/Λ in electroproduction off protons |
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Authors: | Otto Nachtmann |
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Institution: | Institut für Theoretische Physik, Universität Wien, Austria |
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Abstract: | Recent experimental results on electroproduction off protons show that the ratio σ(ep → eK+Σ0)/σ(ep → eK+Λ) decreases strongly with increasing Q2. A simple argument is given in the framework of the quark parton model which could provide a qualitative understanding of this fact. The decrease of the Σ0/Λ ratio is related to the decrease of the ratio as Q2 increases, where are the usual structure functions for deep inelastic electron-nucleon scattering. |
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