Electromagnetic response functions of few-nucleon systems

Inclusive electromagnetic reactions in few-nucleon systems are studied base d on accurate three- and four-body calculations. The longitudinal He-4(e, e ') response function in the q range of 300-600 MeV/c; the He-4 spectral fun ction; the corresponding quasielastic He-4(e, e') response; and the total p hotoabsorption cross sections of H-3, He-3, and He-4 are considered. Descri ptions of the continuum, the role of final-state interactions, sensitivity to nuclear dynamics, and effects of NNN forces are discussed. (C) 2001 MAIK "Nauka/Interperiodica".