1998/08/07 by E. Hernández, E. Hernandez, E. Oset · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-th
paper · pdf · doi:10.1103/physrevc.60.025204
published as Phys.Rev. C60 (1999) 025204 · 11 LaTeX pages, 4 postscript figures
arxiv created 1998/08/07 · openalex publication_date 1999/07/21 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04
A new mechanism for the p\stackrel\ensuremath→ppp\ensuremathπ0 reaction close to threshold is suggested coming from the isoscalar excitation of the Roper and its decay into N(\ensuremathπ\ensuremathπ)_s\ensuremath-wave, with one of the \ensuremathπ0 emitted and the other one reabsorbed on the second nucleon. We show that this new mechanism can lead to important interference with other mechanisms suggested so far.