Study of “resonant-enhancement” effect in πNN dynamics

✍ Scribed by G.Z. Obrant

• Book ID: 104336086
• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 950 KB
• Volume: 442
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(85)80035-x

✦ Synopsis

The "resonant-enhancement" effect observed in deuteron breakup by intermediate-energy pions is treated in the impulse approximation. It is shown that a broad enhancement in the energy region 60-80 MeV in the cumulative neutron spectrum consists of sharp peaks at fixed neutron angles. This corresponds to the domination of quite definite three-particle configurations with given momenta of all particles. As a consequence there are sharp peaks in the nucleon-nucleon effective mass spectrum which imitate dibaryon resonances. The position of the peak in the momentum spectrum for these configurations slowly tends to a constant limit dependent on the particle masses after an initial rise in energy. Different applications of the effects considered are discussed.