2016/04/11 by В. А. Бабенко, Babenko, V. A., N. M. Petrov +1
Physics and Astronomy · #Atomic and Subatomic Physics Research #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Theory (nucl-th) #Nuclear physics research studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1604.02912
openalex publication_date 2016/04/11 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We study relationship between the physical quantities that characterize pion-nucleon and nucleon-nucleon interaction on the basis of the fact that nuclear forces in the nucleon-nucleon system at low energies are mainly determined by the one-pion exchange mechanism. By making use of the recommended proton-proton low-energy scattering parameters, we obtain the following value for the charged pion-nucleon coupling constant gπ± 2/4π=14.55(13). Calculated value of this quantity is in excellent agreement with the experimental result gπ± 2/4π=14.52(26) of the Uppsala Neutron Research Group. At the same time, the obtained value of the charged pion-nucleon coupling constant differs markedly from the value of the neutral pion-nucleon coupling constant gπ02/4π=13.55(13). Thus, our results show considerable charge splitting of the pion-nucleon coupling constant.