1997/09/11 by А. Н. Табаченко, Alexander Tabachenko, Tabachenko, Alexander
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Quantum chaos and dynamical systems #hep-ph
paper · pdf · doi:10.48550/arxiv.hep-ph/9709308
28 pages, 5 Postscript figures, Latex
arxiv created 1997/09/11 · openalex publication_date 1997/09/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The neutral pion electroproduction on the proton is considered in the framework phenomenological model based on the PCAC, current algebra with hard pions and chiral symmetry breaking interaction. The s- wave differential cross-section of the electroproduction of neutral pions off protons near the threshold is predicted as function photon momentum transfer squared k2 . The s- wave multipoles ReE0+ and ReL0+ as function of the energy of the π0p- system are given for the small k2 and % k2=0.1(GeV/c)2. The results are compered with the experiment. It is shown the significant role of the explicit chiral symmetry breaking.