2011/08/11 by R. Shyam, O. Scholten, O. Schölten +1 · 28 citations
Chemistry · Mathematics · Physics and Astronomy · #Algorithm #Cascade #Chemistry #Coupling (piping) #Hadron #High-Energy Particle Collisions Research #Hyperon #Lambda #Materials science #Mathematics #Particle physics #Particle physics theoretical and experimental studies #Physics #Production (economics) #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Resonance (particle physics) #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1103/physrevc.84.042201
published in Physical Review C 84(4) (American Institute of Physics) · 11 pages, 5 figures
arxiv created 2011/08/11 · openalex publication_date 2011/10/10 · arxiv updated 2015/03/19 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We investigate the production of a cascade hyperon (\ensuremathΞ) through the K^\ensuremath-+p\ensuremath→K+\phantom\rule0.28em0ex(K0)+\ensuremathΞ^\ensuremath-\phantom\rule0.28em0ex(\ensuremathΞ0) reactions, within an effective Lagrangian model where these reactions proceed via excitations of \ensuremathΛ and \ensuremathΣ resonance intermediate states in s and u channels. The coupling constants at the various vertices are taken from previous studies and SU(3) symmetry considerations. The calculated total cross sections of these reactions, which are in good agreement with the available data, are dominated by the contributions from the \ensuremathΛ(1520) intermediate resonant state. However, the K+ meson angular distributions show selectivity to other resonant states in different angular regions, and interference among these states leads to their strong backward peaking.