2010/05/31 by Ju-Jun Xie, C. Wilkin, Colin Wilkin
Mathematics · Physics and Astronomy · #Algorithm #High-Energy Particle Collisions Research #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Resonance (particle physics) #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.82.025210
published as Phys.Rev.C82:025210,2010 · Published in Phys. Rev. C
openalex publication_date 2010/08/31 · arxiv created 2010/09/06 · arxiv updated 2015/03/16 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The total and differential cross sections for associated strangeness production in the pp\ensuremath→pK+K^\ensuremath-p and pp\ensuremath→pK+\ensuremathπ0\ensuremathΣ0 reactions have been studied in a unified approach using an effective Lagrangian model. It is assumed that both the K^\ensuremath-p and \ensuremathπ0\ensuremathΣ0 final states originate from the decay of the \ensuremathΛ(1405) that was formed in the production chain pp\ensuremath→p(N*(1535)\ensuremath→K+\ensuremathΛ(1405)). The available experimental data are well reproduced, especially the ratio of the two total cross sections, which is much less sensitive to the particular model of the entrance channel. The significant coupling of the N*(1535) to \ensuremathΛ(1405)K is further evidence for large s\mathrms\ifmmode \else \=\fi components in the quark wave function of the N*(1535).