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The role of hyperon resonances in p(γ, K+)Λ processes

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Abstract:

We discuss the role of hyperon resonances in the u-channel when modeling p γ, K + Λ 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.

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Authors and Affiliations

  1. Department of Subatomic and Radiation Physics, Ghent University, Proeftuinstraat 86, B-9000 Gent, Belgium, , , , , , BE

    S. Janssen, J. Ryckebusch, W. Van Nespen, D. Debruyne & T. Van Cauteren

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  1. S. Janssen
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  2. J. Ryckebusch
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  3. W. Van Nespen
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  4. D. Debruyne
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  5. T. Van Cauteren
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Received: 8 February 2001 / Accepted: 14 May 2001

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Janssen, S., Ryckebusch, J., Van Nespen, W. et al. The role of hyperon resonances in p(γ, K+)Λ processes. Eur Phys J A 11, 105–111 (2001). https://doi.org/10.1007/s100500170100

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  • DOI: https://doi.org/10.1007/s100500170100

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