1996/09/13 by S Pepin, S. Pepin, Fl. Stancu +5 · 1 citation
Physics and Astronomy · #Chiral symmetry #Color charge #High-Energy Particle Collisions Research #Hyperfine structure #Pentaquark #Physics of Superconductivity and Magnetism #Quantum Chromodynamics and Particle Interactions #Quark #Quark model #Stability (learning theory) #Tetraquark #hep-ph #nucl-th
paper · pdf · doi:10.1016/s0370-2693(96)01597-3
published as Phys.Lett. B393 (1997) 119-123 · 10 pages, plain teX
arxiv created 1996/09/13 · openalex publication_date 1997/02/01 · openalex created_date 2016/06/24 · arxiv updated 2016/09/06 · openalex updated_date 2026/08/05
We discuss the stability of multiquark systems within the recent model of Glozman et al. where the chromomagnetic hyperfine interaction is replaced by pseudoscalar-meson exchange contributions. We find that such an interaction binds a heavy tetraquark systems QQ q q (Q=c,b and q=u,d) by 0.2-0.4 GeV. This is at variance with results of previous models where cc q q is unstable.