2008/06/23 by Daisuke Jido, Yoshiko Kanada-En’yo, Yoshiko Kanada-En'yo · 1 citation
Chemistry · Mathematics · Physics and Astronomy · #Algorithm #Chemistry #Crystallography #Hadron #Mathematics #Nuclear physics research studies #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #State (computer science) #nucl-th
paper · pdf · doi:10.1103/physrevc.78.035203
published as Phys.Rev.C78:035203,2008 · 8 pages, 3 figures, 3 tables. use revtex
arxiv created 2008/06/23 · openalex publication_date 2008/09/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A KKN system with I=1/2 and JP=1/2+ is investigated with nonrelativistic three-body calculations by using effective KN,KK, and KN interactions. The KN interaction describes the \ensuremathΛ(1405) as a KN molecule, and the KK interaction is adjusted to give f0(980) and a0(980) states as KK molecules. The present investigation suggests that a bound KKN state can be formed below the KKN threshold (1930 MeV) with a 90~100 MeV width of three-hadron decays, which are dominated by KKN\ensuremath→K\ensuremathπ\ensuremathΣ and \ensuremathπ\ensuremathηN. The KKN state is found to be a weakly bound hadron molecular state with a size larger than an \ensuremathα particle because of the repulsive KN interactions.