Nucleon-resonance decay by the K-0 Sigma(+) channel near threshold

R Castelijns*, H Lohner

*Corresponding author for this work

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For the combined setup of the Crystal Barrel and TAPS at ELSA in Bonn we have proposed to study the reaction gammap --> K(0)Sigma(+). The reaction is characterised by the final state of 6 photons and a forward emitted proton. Here we report on results of simulations to demonstrate the feasibility of the experiment. From the threshold behaviour of the cross section and angular distributions we aim to search for a 3(rd) S-11 resonance just above the KSigma threshold, which may mix with the two lower lying S-11 resonances and thus provide an explanation for the unusually strong eta branching of the S-11(1535) resonance. The hyperon polarisation can be studied as a sensitive tool to determine the various resonance admixtures.

Original languageEnglish
Pages (from-to)899-908
Number of pages10
JournalActa Physica Polonica B
Issue number3
Publication statusPublished - Mar-2002
Event6th Workshop on Particle Production in Nuclear Medium - , Poland
Duration: 9-Sep-200113-Sep-2001



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