Are Hyperon Resonances Required in the Elementary K+Λ Photoproduction?

Terry Mart, N. Nurhadiansyah

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

We have investigated the role of hyperon resonances in the kaon photoproduction process, γ p → K+Λ, by using a covariant isobar model. To this end, new experimental data are used in the fitting process, whereas the old SAPHIR 1998 data are also used for comparison. The result indicates that the Λ(1600)P 01 and Λ(1810)P01 hyperon resonances can significantly reduce the χ2 and, simultaneously, can increase the hadronic form factor cut-off in the background terms. This finding is different from the result of the previous studies, which showed that the Λ(1800)S01 was important for this purpose, instead of the Λ(1600)P01.

Original languageEnglish
Pages (from-to)1729-1739
Number of pages11
JournalFew-Body Systems
Volume54
Issue number11
DOIs
Publication statusPublished - 1 Nov 2013

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