Kinematical relativistic effects in (e→,e′N→) reactions

✍ Scribed by M.C. Martı́nez; J.A. Caballero; T.W. Donnelly

• Book ID: 104335598
• Publisher: Elsevier Science
• Year: 2002
• Tongue: English
• Weight: 640 KB
• Volume: 707
• Category: Article
• ISSN: 0375-9474
• DOI: 10.1016/s0375-9474(02)00879-5

✦ Synopsis

Kinematical relativistic effects are analyzed within the plane-wave impulse approximation for outgoing nucleon polarized responses in coincidence electron scattering. Following recent approaches for semi-relativistic reductions of the electromagnetic current operator, here an exact treatment of the problem for the transferred energy and momentum is presented. Rather than employing existing semi-relativistic expressions for the single-nucleon matrix elements, in this work the response functions are expanded directly. Results are compared for different kinematical situations with the fully-relativistic PWIA calculation as well as with previous expansions. Off-and on-shell prescriptions are also studied in detail, and a systematic analysis of the various kinematical variables involved in the process is presented.