Evidence for a missing nucleon resonance in kaon photoproduction

Terry Mart, C. Bennhold

Research output: Contribution to journalArticle

204 Citations (Scopus)

Abstract

New SAPHIR p(γ,K + ) Λ total cross section data show a resonance structure at a total c.m. energy around 1900 MeV. We investigate this feature with an isobar model and find that the structure can be well explained by including a new D 13 resonance at 1895 MeV. Such a state has been predicted by a relativistic quark model at 1960 MeV with significant γN and KΛ branching ratios. We demonstrate how the measurement of the photon asymmetry can be used to further study this resonance. In addition, verification of the predicted large decay widths into the ηN and η′N channels would allow distinguishing between other nearby D 13 states.

Original languageEnglish
Article number012201
Pages (from-to)122011-122014
Number of pages4
JournalPhysical Review C - Nuclear Physics
Volume61
Issue number1
Publication statusPublished - 1 Jan 2000

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