Mesonic contribution to the Compton scattering amplitude for heavy nuclei

✍ Scribed by M.-Th. Hütt; A.I. Milstein

• Book ID: 104336109
• Publisher: Elsevier Science
• Year: 1996
• Tongue: English
• Weight: 850 KB
• Volume: 609
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(96)00270-9

✦ Synopsis

The contribution of mesonic exchange currents to nuclear Compton scattering is investigated within the framework of a Fermi gas model of nuclear matter in the non-relativistic limit. The additional interaction between the nucleons is accounted for by including two-and three-body diagrams. As a test of this model, the enhancement constant K is calculated. The full correlators for the central and tensor parts of the nucleon-nucleon interaction due to pion exchange are obtained and the energy dependence of the amplitude is investigated. The contribution of the A-excitation to the mesonic part of the Compton amplitude is calculated explicitly using an effective Hamiltonian in the static limit.