2000/09/30 by D. Bartz, Fl. Stancu · 2 citations
Physics and Astronomy · #Chiral symmetry breaking #Constituent quark #High-Energy Particle Collisions Research #Meson #Nucleon #Particle physics #Particle physics theoretical and experimental studies #Physics #Pseudoscalar #Quantum Chromodynamics and Particle Interactions #Quark #Quark model #nucl-th
paper · pdf · doi:10.1103/physrevc.63.034001
published as Phys.Rev. C63 (2001) 034001 · 27 pages, 2 Tables, 4 eps Figures, with RevTeX
arxiv created 2000/12/04 · openalex publication_date 2001/01/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the nucleon-nucleon interaction in a chiral constituent quark model by using the resonating group method, convenient for treating the interaction between composite particles. The calculated phase shifts for the 3S1 and 1S0 channels show the presence of a strong repulsive core due to the combined effect of the quark interchange and the spin-flavor structure of the effective quark-quark interaction. Such a symmetry structure stems from the pseudoscalar meson exchange between the quarks and is a consequence of the spontaneous breaking of the chiral symmetry. We perform single and coupled channel calculations and show the role of coupling of the \ensuremathΔ\ensuremathΔ and hidden color CC channels on the behavior of the phase shifts.