The YN interactions and K- reactions on deuterium at low energies

G. Toker*, A. Gal, J. M. Eisenberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

83 Scopus citations

Abstract

The K-d → π- Λp reaction, as well as the other three-body K- reactions on deuterium, are considered for s-wave kaons in the Faddeev formalism for charge-independent separable two-body coupled-channel interactions fitted to the available low-energy data. In particular we study the effect of a hypothetical I = 1 2, S = 1, ΣN unstable bound state near the πΣN threshold on the shape of the calculated Λp invariant mass distribution near the ΣN threshold. This calculated distribution always exhibits a cusp behavior at the ΣN threshold, but considerable structure and broadening may be reached by varying the parameters of the YN interaction. Multiple scatterings in the initial K̄NN and intermediate πΣN channels play a dominant role at low energy. The calculation compares favorably with the measurements at rest and at low energies. This comparison suggests that a ΣN bound state does not exist near the ΣN threshold.

Original languageEnglish
Pages (from-to)405-430
Number of pages26
JournalNuclear Physics A
Volume362
Issue number2
DOIs
StatePublished - 8 Jun 1981

Fingerprint

Dive into the research topics of 'The YN interactions and K- reactions on deuterium at low energies'. Together they form a unique fingerprint.

Cite this