2005/01/30 by H. A. CLEMENT, H. Clement, M. M. KASKULOV +3 · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · doi:10.1142/s0217751x05022123
openalex publication_date 2005/01/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/06/26
After examination of the correlated two-pion exchange in the NN interaction in terms of chiral pion loops in the t-channel, we consider loops in the s-channel, which get lifted on mass shell in the two-pion production process. We show that the thus obtained dynamical correlations in the σ channel lead to a quantitative description of recent exclusive measuerements near threshold.