2013/05/24 by M. V. Egorov, M. Egorov, A. Fix · 18 citations
Physics and Astronomy · #Amplitude #Deuterium #High-Energy Particle Collisions Research #Meson #Nuclear physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #nucl-th
paper · pdf · doi:10.1103/physrevc.88.054611
published in Physical Review C 88(5) (American Institute of Physics) · 11 pages, 6 figures
arxiv created 2013/05/24 · openalex publication_date 2013/11/18 · arxiv updated 2013/11/27 · openalex created_date 2016/10/28 · openalex updated_date 2026/08/05
Coherent photoproduction of \ensuremathπ0\ensuremathη on the deuteron and 3He and 4He nuclei is considered in the energy region from threshold to a laboratory photon energy E_\ensuremathγ=1.2 GeV. The transition amplitude is derived in the impulse approximation. The effects of pion absorption are included by means of the Fernbach-Serber-Taylor model. For the reactions on d and 3He the interaction of the produced \ensuremathη meson with the recoiling nucleus is taken into account. The corresponding \ensuremathηd and \ensuremathη3He scattering amplitudes are obtained as solutions of the few-body equations for \ensuremathηNN and \ensuremathη\ensuremath-3N systems. The impact of this interaction on the differential cross section in the region of small relative \ensuremathη-nuclear momenta is discussed.